The Incredible History & Biology of The Emerald Dwarf Rasbora - Danio erythromicron +Care & Breeding
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- Опубликовано: 12 май 2018
- Rimless Tank and ADA Amazonia substrate, high tech style set up is thanks to Seattle's Aquarium Zen, And I highly urge you to check them out!
www.Aquariumzen.net
What is your favorite small fish for the home aquarium? Mine is a tie between the indo Chinese region's tiny cyprinids. The Celestial Pearl Danio and this video's star. the Beautiful striped nano fish -the Danio Erythromicron.
The Emerald Dwarf Rasbora was mislabeled as a tiny rasbora species for nearly a century after British colonial naturalists discovered, or more aptly- they cataloged it for the western world, as the local Shan people of Lake Inle knew of the beautiful nano fish for milenia prior to1919.
This video is part educational history, geography. sociology, biology and political science along with the standard species profile on Danio Erythromicron. How to care for. how to breed. how to raise and how to keep these little fish happy in a densely planted tank. from feeding seed shrimp and daphnia, to microworms and vinegar eels, these little fish tank favorites love live food
So feel free to ask any questions about how to sex these fish (or determine the gender) , what they eat, what are their water parameters and which fish are good tank mates with these little guys.
/ somainkdesigns 
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Really great information as always , thank you Alex
You got it!
Love this! I'd love to listen to this type of content as a podcast!
Thank you kindly, Ma'am. I have debating taking the audio off some of my favorite longer episodes and starting one... but time and hosting money, to do it properly is hard.... If I can get more patreon backers and or subs, then hopefully I can afford it all for setting up them!
have a great week!
Cool video. I always like hearing the history of what's in your tank.👍
I will be getting back to this more whenever they monetize the channel....not for money, but because RUclips doesn't allow videos to trend or in some cases- even denied them being suggested at all. if they don't make money. Then no one hardly views episodes that I do anywhere from 2 to 20 hours researching (the pleco L name system. or history of the aquarium hobby videos)
Super interesting history! Thank you :)
I really enjoyed this. Particularly learning about the fish and the problems obtaining them. Wonderful vid and great info. Thanks for taking the time and effort to do these. (I adore that blue cloud endler and the other with blue and yellow in the tail.)
Thanks for the upload. Love what you're doing!
thank you so much for watching! I can't do it without folks like you enjoying it
I know this is one of your older videos, but I'm on a spree since I found you, and I am looking to breed these during 2023.
Thank you for the deep dive!
This is hands down my favorite of your videos.
Thank you very much.
As soon as youtube monetizes my videos..(.not that I'm concerned with money now...its like 2 bucks a month), I'll be doing more like this...if you go back through my early videos there are lots like this, but RUclips won't suggest videos after 5 days or 2 weeks depending on initial views....if they aren't making money, which they won't without ads.... so in closing, the videos I spend hours and hours researching, get burried for now...but they said they have a 6 month back log....we are at 6 months since they said that.... any day now...until then, the info trickles out like one a week.
Just found your channel. Subscribed! ( I'm subbed to about 50 fish channels and I have just realized most of them offer nothing but feedings, unboxings and tank updates so I'm purging them and subbing to the information centered aquarist channels , like yours)
Thanks for sharing! 😀
glad it was enjoyable! have a great day, my friend
Great video! Love all the information 😊
Thank you
Another awesome education for me, thanks a lot for all your research and hard work!!!
Of course! It's what I love to do. I'm glad it was of use to you. Thanks for tuning in, and commenting!
I really like the information you provide thanks man
I appreciate that, thank you very much for viewing, my friend!
Fascinating multicultural essay!
My favorite nano fish is Scarlet Badis. This is a great vid! Enjoyed it!
ahhh Dario Dario heeh... little, beautiful and fierce for a tiny fish
Love me some History. Thanks Alex!
of course. I'd like to mostly do these, but it takes some time to do it accurately, rather than off the cuff (especially when calling a government cruel and ruthless lol)
The History, as mentioned in your page title, is what sets you apart from a myriad of other posters. It's one of the reasons I sub and patreon you. The research time must be extensive, as is the appreciation for the shared knowledge. Keep doing what you do so well. Thanks so much for the video.
I have been amassing a huge group of video ideas and a journal of ideas, however I'm doing more biology and "how to videos"...with the science no one mentions, or sprinkles of history as the 4x a week type live streams or videos, then every 6 to 10 days doing a history based video... I'll keep it up like this probably, once its monetized, I'll likely turn off most ads but hit that history hard. so people are able to find the videos I put hours and hours into. Bob, you rock, thank you so much
Thank YOU Alex!
Thanks, I love these little fellas too. Would have loved to see you release them at the end of the video though.
Note that 3 day old Celesticthys babies are surface feeders, have tiny mouths, and don't really conceal themselves well when actively hunting food. This makes trying to breed them in a tank with active near adult sized fish ( Endlers are going to murder any free swimming hatchlings...) a real problem. These would be better bred in a well established Neo Shrimp tank with a lot of micro fauna like rotifers, seed shrimp and cyclops. Heavily planted like darn near little room for the adults to swim in. Lots of floating plants like Oak Leaf Water Sprite, Salvinia and Riccia.
Yes thank you- and that's what i do now in my newer videos and yield 30 or so fry instead of 5 each round
I want to get these, but I'm concerned about jumpers, same for the Galaxy 'rasbora'.
I've a 35l rimless that's heavily planted. My parameters are 7.6 - 8.0pH, 170ppm.
Do you have any advice on the subject of fish jumping?
I find it fascinating they can hybridize with celestial pearl danios.
I know! It's because they've both evolved in the Shan & Wa Valleys of Burma / Myanmar and it is very remote... (common ancestors)
What kind of plants are you growing out there for the undergrowth/carpet?
I like fish and history mixed!
Right on! Welcome to the channel that can't pick a favorite topic haha. Thanks for watching and have a great day
A very us view on history 😁
Yeah, a liberal post modern american view for sure. But referencing the POV of the Shan people as a timeline for the hobby's use of the fish, wouldn't really serve the discussion well. As it is an oral tradition of a non-food source fish... so it would be like " we cultivated farms all across the lake of Inle and noticed some small fish swarming and swirling around our crops, then oil slicks and a shimmer showed up on the farms Matt's, tourists came and the fish attracted about 200 crazy white people the last 10 years... and now they don't come for them anymore...and the fish seem to be leaving also." The end
I’m confused. I just saw microdevario kubotai or the neon green rasbora also called the emerald rasbora..?
Yes its newer in the hobby and its why the names they make up for retail are so confusing. The latin is far better... microdevario kubotai vs emerald dwarf rasbora and the M. erythromycrons
Yeeeesss.....I just bought some of these guys and I was hoping you’d have a video about them. the strangest thing was seeing the zebra danios immediately buddy up with them. I was worried the zebras would harass them, but instead it looked more like they assumed the role of chaperone for the micros🤔.
Do you think they are ok to stay together or will they hybridize?? 😬
They won't hybridize, they're distantly enough related that only cpd and erythromicrons interbreed, however given the right mixture of fish stocked together, youll see them school up or at least stick together in the face of other fish often times. I hope you enjoy them...they're very cool fish if you spend the time to watch their intricacies
The Secret History Living in Your Aquarium . Yeah I have never seen two different species interact like that. Especially since the zebras were like hyperactive little kids and then suddenly seemed to take on the role of host and chaperone. I’m glad I can keep them together. Thanks for the lessons and sharing your knowledge.
Hi, I hope you will answer me.
Since i'm doing aquaristic I have always heard that CPD and erythromicron can hybridise. You say they where many reports and people selling hybrids... But where? I have NEVER seen any picture of a confirmed hybrid in the hobby. The only possible hybrids are actually wild caught fish with weird paterns.
Also with a friend we saved a large population of both CPD and erythromicron from the same tanks. Many fishes where very small barelly juveniles so the fishes have breed in the previous tank. Not a SINGLE fish from that batch was an hybride.
I wont consider keeping them together but i'm highly sceptical about they hability to hybridise despite their relationship.
At this point I'm just clicking on random videos of yours just to get in touch 😅😅😅 don't worry I will also watch the video because I have 3 Danio in my tank and never learned much about them yet...
I lost an entire colony of daphneas that got genocided by cyclops. They where not even eating them, they just went there for the blood bath.
Now I found those cyclops in my shrimp tank also (I just have 5 shrimp in there but one of them is having eggs in her poach). It's my only female so she and her eggs are very precious to me.
Will cyclops attack the baby shrimp or the eggs like they did to daphnias ?
At first I did put some guppy fry in there to eat the cyclops (which they did) but then I'm worried about them also eating the baby shrimp.
I like "What do I do now" ?
Ive never seen cyclopse get large enough to eat daphnia or baby shrimp...there are a lot of different species around the world, but im thinking you may be seeing the scuds killing everything...they can be a nano pain in the butt .
Id put food out in the middle of the night, wait 10 minutes and then with a flashlight use a turkey baster or syringe and remove the trouble makers. , its that or set the shrimp in a bowl or tank, then drain the tank...and put scolding hot water in the tank ( which can also kill plants and some bacteria). They live in the substrate though and have very similar anatomy to shrimp, so sadly there is no one medicine or treatment to chemically target those little pain in the butts . Sorry. You can always raise the baby shrimp in a fry pen or seperate container...milk jug etc. For 30 or 40 days also...feed em dried leaves and use Bacter AE as recommended...adding a tiny tiny pinch of crushed fish food flakes or algae wafers every 3rd day or so
@@Fishtory
Thanks for the explanation.
I made a video for you when this hapenned (unfortunayely it's too late now).
ruclips.net/user/shortsQGU87ZiGfEM?si=dfwAO3Uf4gc6dOpD
Took them only 2 or 3 days to totally genocide 1000 daphnias. I've seen them live getting attacked viciously.
Cyclops just left the bodies floating without even eating them.
That is why i'm worried about them killing baby shrimp also.
So I keep just one guppy fry in the shrimp tank at all times, as soon as there is one fish in there I dont see cyclops no more.
But then I'm worried about the guppy eating the soon to be born shrimps.
I guess my best bet right now is to not touch anything and wait to see ... 🤷
Amazing content, and amazing fish. I keep 10 of them in a community aquarium and they seem to hide almost all the time, any ideas how to reverse that?
Give them a back rows of thin stem plants... 2 or 3 inches deep front to back. Then they will feel like they can hide quickly...but if you leave the tank wide open without hiding places, they just try and hide in a corner or behind a few objects. Naturally they live in densely planted flooded forests creeks and lakes
@@Fishtory Nice thank you! Im going to have it a try. What PH do you keep them?
Question: I've got a 23gallon long and I'm planning on having 7 glowlights, 6 neon tetras, 6 rummy nose tetras and a couple of coryies. Do you think this will be overcrowded or do you think it will be fine? It's planted and I will be doing 9 day 15% water change cycles
yeah should be fine...if it is an issue after it's all cycled, worse case is you need more airation and 20% water changes or something. but I've doubled that amount of bioload, you just need some otos, corries, perhaps some shrimp and some snails...some mts, and some nerite or rams horn are recommended for clean up crew.... However if you want schooling action in a longer tank like that, plant the back and or sides heavily, and leave a spot more open in the middle ... also it's nice to put a HOB filter on the end of the tank, so there's a flow lengthwise...that or a tiny pump/powerhead to give some currents and keep water temp and parameters all equally mixed...get debris to run through the filter.
Also, if you got like 10 or 12 neon blue or green tetra, or chili/lime rasboras or a small danio, you can fit a lot more fish in....the rummynoses school really really well if given space and numbers like 8 or 9+....just some thoughts. just test it every week for nitrates and ammonia for the first 2 months once its loaded up
I've had a small group of these guys for about 8 months now and they are doing ok but just won't breed for me consistently. I moved them to their own 10gal tank about a month ago but they just hide in the back of the tank under the sponge filter. I've got the tank set up like all of my other breeding tanks with a black sand substrate and a few Java Fern. I use a glass bowl full of moss for them to scatter their eggs. I've had very little luck with this group of 4 females, 2 males and 2 juveniles. Any suggestions on what I can do to trigger some spawning? I've tried all my tricks like live foods, unplugging the heater for a couple days and nothing seems to work. Thanks for sharing as always.
So from other folks I've heard 2 good ways... first colony breeding , where you just do a species tank and grow super dense monte carlo and or pearl weed, something with super fine leaves and surface area...then get a fish feeder ... feed them baby brine or daphnia in the mornings when the lights are on and turn up the water temp to 78 , then do a nice 30% water change and dial it back down to 74 or 75 (signal of the wet season starting there). but they will breed all year if given enough protein and live food at least once a day signals that their babies have food...also having a slightly algae coated tank helps. ...low TDS and clean medium to slow flow HOB or powerhead to recreate the moving swamps they live in. If you have dense enough layers of plants they won't be able to eat all the eggs they lay (some shrimp and snails also eat eggs too).
Your method, most the same stuff applies to the tank...get moss or fine leaf material in a petri dish or little Tupperware you can remove...feed heavy live food when lights are turned on, and they'll lay eggs a couple days a week in groups of 5 or 6 individuals, keep them fed with an auto feeder and high protein food for 3 or 4 day, 4 to 5 times a day in tiny amounts, then remove the fish or the plants and let them sit in a tank alone 5 days and see if they spawned.
The small group l, glass bottom tank method works well with females swapped out every few days if you do small groups, but with a colony, the trick is to have lots of room....20 long or more and enough space for them not to just eat their own eggs all day.
(they lay eggs, then up to 2 weeks in some cases , they can get drained,) so like 2 females and a male or 3 female with 2 males will work well. lf none of that works. then try more tannins and or leaf litter and keep water warmer (if they dont respond to the warmer water then cooler influx) try just keeping them warmer since it raises their metabolism.
good luck man!
The Secret History Living in Your Aquarium Thanks for the detailed information. I really appreciate it and will try a few more things with the setup I have and if that doesn't work then I'll have to completely change approach. Thanks again for the help. This Information is definitely going in my notes for these guys.
@@Fishtory Amazing stuff man, thanks for sharing!
Love the video, although I must correct you on the British controlling siam, saim was never ruled by Britain or any European powers for that matter.
I suppose that is true in the sense that it wasn't explicitly controlled and colonized socially. But King Chulalongkorn was definitely under the pressures and influences of French and British, with the economy and policies shaped by European powers calling it a neutral territory...sort of like Switzerland and the Nazis or the , as far as I understand the history. If I'm incorrect on that though, please let me know more. The history I've read always seemed to explain the entire region as being ruled by European powers and Thailand was so linked by trade that the 1800s through wwii saw Thailand under those influences, and the monarchy not needing to be conquered via force. (But I could also understand it, if that view of things is a "white washed" or too eurocentric view)
if its consider a danio, is it ok to keep them on unheated aquarium? like zebra danios?
As long as it stays over about 64/65 yes
Correction, they wrap their ankles around the oar, not the canoe :)
Thank you hah
So what would a hybrid look like?
Zebra stripes that are more faint (not bars) and or also they can look like red finned cpds with their front half having 2 to 5 half stripes
The Secret History Living in Your Aquarium i think i might allow that to happen! 😊
I love both fish but never thought to mix them.
People have cross bred Brachydanio Rerio with C. Choprae, so take the hybridizing problem as a fact. Also there is a Northern species of the Glowlight Danio known as C. Flagrans that is pretty similar, that will hybridize. So keeping these with other regional Danios could be a problem.
@@tauncfester3022 true, but almost no fry ever grow up in the tank. I move 2 to 5 individuals to a 10 gallon spawn tank- so i think it's unlikely that they would happen to hybridize AND any fry -let alone, their eggs even survive to adulthood
"Spread their .... (cough)... DNA." LOL. You can call it milt.
Sometimes I do hehe. But is it still milt if it's internally packed into the female with a gonopodium? Or is it sperm then?
@@Fishtory True,; it's not milt because it's not sprayed on eggs. But that or sperm or insemination all seem better than saying ejaculate (the term the science journals use).
@@dougrhess yeah the problem is sometimes sperm gets flagged by youtube and they demonitize the whole video ... oi its silly
nano is smaller than micro
Yes yes. Oi
Hey Alex I was wondering how I can sex these fish. Cheers👍
the males are colorful and striped, the females are all washed out and kind of tan or bronze (no dark bluing behind tiger stripes). Also, the females have a gravid (black spot) at their anal fin, the males wont. Good luck!
The Secret History Living in Your Aquarium thanks a heap alex👍👍
@@coolasrc no problem my friend. My videos on breeding CPDs is exaaaactly the same for erythromicrons aka "emerald green dwarf rasboras". As they are divergent relatives of one another. E.m.s are just the species previous to getting locked inland to lake Inle, (it's in the areas rivers and likely got in the lake 8 to 12,000 years ago and was sealed off by a massive landslide
Their cloud of 'DNA'? 🤣
Thailand was never "colonised".
Not officially but the Brits from the time they had Hong Kong and Singapore were regionally forcing their hand at trade ...later Japan for a short time. But strictly by the book, no they were not colonized but there was still a colonial and imperial era that impacted them. Also i may have referred to Myanmar, Laos and Thailand then said something about Myanmar and the brits without making myself clear
Slave labour? What the hell are you talking about?
Well documented politics and histoy
@@Fishtory when politics is involved, history is never well documented, it's fabricated.
You could bet your life that under British rule, there was less slavery than before or after.
@@billlansdell7225 by the way you understand that slave labor and slavery are two different things, right? Also did you not listen at all to me talking about the war crimes and crimes against humanity that went on when the British left?... Which would agree with your statement, but since history is all made up, maybe we shouldn't trust anything.
Maybe you should educate yourself on the situation. There's ample journals and first person accounts from British sources (in fact most of the history was written down by the British). The British dismantled the very fiber of Myanmar culture and society and turned Burma into an export focused colony with little to no interest in what the costs were to the local people. In the 3rd charter the British drafted it even states "The Interest of the Crown and trade affiliates in kind, are to extract profits from the Burmese Colony of Greater India and to harness the savage and agrarian focused economy in hopes of industrializing and civilizing the people of Burma. Due to their superstitious and peaceful disposition as a Buddhist Monarchy, rule shall be consolidated under British governance. The tie between England and the Burmese colony shall in perpetuity be a profitable one, based on resource extraction and a favorable trade balance. All current and former rule is herby abolished and handed over to the British Governor General from west of Siam to the Bengal territory."
www.britannica.com/place/Myanmar/The-initial-impact-of-colonialism
@@Fishtory I have educated myself, which is why I know how to read history.
I am really surprised you cannot see the contradictions in your link.
This was the empire that had previously been at war with Laos and Cambodia, was on a verge of war with China, and so to fill the war chest had decided to invade India. That of course is how they came into conflict with the British in the first place.
So much for "peaceful disposition".
Despite the glowing Marxist endorsement on their redistribution economy, it seems most people had checked out of it or had never been involved in the first place. Sure, it was a reasonably wealthy nation, but the average rice farmer didn't benefit from it, , same as under the British. Some of the regions claimed by Burma were only nominally under Burmese control. And of course, at the time of the third Anglo-Burmese war, the King was about as popular as a turd in a swimming pool, having slaughtered any potential rivals (at least that was the perception, although it was actually his mother-in-law).
And who do you think was in control of the monopolies granted by the Burmese crown, that were responsible for slavery and indentured servitude? Sure, it's their culture to be enthralled to the monks, but lets not pretend it was all rosy.
That article makes it sound like the British were forcing the Burmese to borrow money to develop land. Does that really make any sense to you? Don't you think it more likely that they were eager to borrow money to cash in on the lucrative export markets?
So they got ripped off by Indian loan sharks, does that sound like something that might be a widespread problem, or more likely to have happened a 'sometimes', but makes for a great angle?
If you look at how the British ACTUALLY operated across the empire and why they were so successful, a lot of what's in that article doesn't make much sense.
"but the local price was kept down by a handful of British firms that controlled wholesale trade and by Indian and Chinese merchants who controlled retail trade."
That doesn't make much sense does it? I don't know, maybe you think it does.
"The dispossessed farmers could not find employment even on their lost lands because, with their higher standard of living, they could not compete with the thousands of Indian labourers who went to Burma."
Well, this I can understand. Uncontrolled immigration does that. But at least that had higher standards of living, and it's cultural diversity right? Diversity is a strength.
I am sure that if you cast your mind back, you'll recall that when your own country switched from slave power to steam power, there was some upheaval, and possibly a bloody civil war, yet I somehow doubt you regret going through these growing pains. When my own country went through the agricultural revolution, and then the industrial revolution, there were also winners and losers, great social and cultural upheaval.
Burma was lucky enough to go through this with common laws, property rights and all that good stuff that the British brought. And yes, we had a free press back in those days too. So of course the government had it's critics, often harsh critics, who might not have been so harsh and the opposing party been in power. So saying, "Look even the British were saying it was awful!" doesn't carry as much weight as you might think it does. Pick any subject you like over the last 300 years and you can find people moaning that it was the worst thing ever.
The numbers don't lie. Indians and Chinese flocked to the region because the British opening up trade brought great opportunity, Burmese entrepreneurs borrowed money to invest because there was opportunity, (although, like the Indians, seems like they weren't much good at it), standards of living rose, and as always, the British Government made a net loss. For every pound in revenue gained from the Empire, it cost two. Burma was one of the most costly regions and bankrupted the EIC.
This idea that the British were marching people into slavery at the point of a bayonet while raping these countries of all their riches is a complete fiction. As is the idea that until the Europeans turned up, they were all pacifists who lived in a socialist utopia where they sipped mango juice all day long.
They were themselves an Empire, not particularly unified, but a collection of states conquered by Burma. If things had turned out differently, they may have become a major regional power, but it's more likely they would have become part of the Chinese or the French Empire, and far worse off for it. Yes, the British colonialism could be brutal, but compared to what? Compared to Peterloo? Compared to the massacre that put Thibaw Min on the throne of Burma?
@@billlansdell7225 so what that I said was in accurate? You are just protecting some post colonial guilt or defensiveness... I didn't say the Brits did anything at the point of a bayonet... but you decided to add that...and it happens to be true.
You can argue that the Brits improved tech, infrastructure and food stability. But you can also imagine- if the Russians came and invaded the UK tomorrow- and stayed 100 years and destroyed your monarchy, the Anglican church's land holdings and tried to get everyone to learn Russian and act Russian... there would be absolute war and resistance.
Also the USA Civil War is one of the ugliest and bloodiest wars in modern history and US slavery (the most brutal form in the world) was disgusting...and while it may have led to economic growth for white America and business's, it IS STILL shaping income inequality and the social identity of Africa Americans... I would hardly say because we all now have a better standard of living now, we can even begin to justify the Atlantic slave trade.
You have an awful lot of assumptions of my account of the region's history... for you completely ignored the comments I made about tribalism and remote ethnic groups that have been waring for eons...let alone the instability and violence seen in The Golden Triangle in modern times. Still ethnic groups like the Shan and Wa refuse to participate fully in a centralized state and it was when the brits suddenly left that the modern dictatorship/ junta started ...all of which I said.
It just seems odd how defensive you are about the legacy of British Colonialism... "Thou doth protest too much". And about issues not even raised...you filled up the plot holes with blaming the locals and exonerating all responsibility from the EIC and GB
the potted judgmental colonial bs!
On which side? Lol
Please don't dramatize the history, for those who don't know is correct. But to those who know the history and have been there, your history narrates are laughable. Only about half are true.
How so? The shan region and wa region are still not friendly to westerners outside of specific tourist sites... the maynmar military has had a coup since I posted this, and hundreds more people have died in ethnic clashes...oh and the Rohingya are still without a solid home. I'm not saying America is all sunshine and roses...we have more violence in some cities here, than "war zones" do there, and elsewhere... but I would love to hear what you think is incorrect?