Game over. Murray Cod conclusion: 80F deadly, 75F max. Taiwan farmer says 86F/30C is okay. IDK how??
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- Опубликовано: 8 июн 2024
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Here's what google said
Murray cod, an Australian native fish, can tolerate a wide range of water temperatures, from 8-24°C (46.4-75.6°F), but their ideal temperature is between 18-21°C (64.4-69.8°F). They prefer warmer temperatures and may move into shallow areas of lakes in winter. However, they will seek cooler water when temperatures rise above 22-23°C (71.6-73.4°F). They're ideal breading temp is 68°
Thank you. This is helpful. I've seen this before and hence was surprised by the 86F high from the farmer. But it gave me hope that I could try. Looks like cod is not the kind of fish that could adapt to higher temps.
Sorry to hear that Vic budd
Ah sorry for your loss.
Murray cod are very fascinating fish.
I have a Murray-basin turtle, also likes more lower temperatures.
Strange to me because I thought: Australia! Hothothot.
I could keep him year round outside if I wanted.
Good to know about the turtle. Thank you, Hemp!
I would say try it again in the future when you have a permanent setup with the lower temperatures. I remember someone commenting on one of your earlier Murray Cod videos talking about how they are raised in their native range as well as on commercial farms.
My guess is that they can tolerate warmer Temps for a month or two... maybe even up to 6 months.
Also, maybe farmers raise them at a warmer temperature when young to get more growth then shift the temp down.
My guess is he should start then at 67 to 70 degrees Fahrenheit.
Maybe even a tick lower
The cod were at around 80F (78-82F) for I'd say 2 months - Apr and May. End of May the beginning of June the temp rose from 82F to 86F.
Thank you. For now no foreseeable ability to have a tank at no more than 75F. Time will show.
Maybe high temperatures for too long is too stressful for the little fishes? Maybe in Taiwan only a few months or weeks are really 30 degrees when average is much lower?
The cod were at around 80F (78-82F) for I'd say 2 months - Apr and May. End of May the beginning of June the temp rose from 82F to 86F.
For these fish it's like for rainbow trout here we can keep them up to 26 degrees but with very, very high oxygenation of the air.
I think we agree, thank you Nicolas! High aeration is a must, yes, and we have that. As for the temp, 26C = 79F. Having tried 2 times with 2 cod each time, once in 2015-2017 and now in 2023-2024, I believe I'd not exceed 75F to be really safe with them.
Was he showing the signs of illness prior to being moved Vic?
He was following step in step his brother who had died first. Reduced appetite followed much reduced appetite, followed 10x less appetite, followed wanting to eat but not eating, followed by increasingly heavier, labored breathing, followed by laying out in the open instead of staying in a hide as the norm, followed by having a little fungus on the fin tips. If I didn't do the transfer to the chilled tub, everyone would say "Why didn't you do something to save it!?"
When the temps get warm in their native range, I think the water movement is still quite large and volume maybe with these colder water fish they need the water moving around more/air bubbles
Thank you. The turnover in their tanks is 12.5 times: the flow is 2,500 GPH and the water volume is 200 gal. The incoming water is very well aerated. I doubt I could raise the DO much if at all.
Thank you for always being willing to be a sponge I apologize for any unsolicited advice , looking up to you Victor ! I have been looking up to you since I was legally a child lol wonder work Vic
@@herphunt You are entirely too kind but I will take the vibe, thank you! You know full well I welcome any constructive comment and yours was such, so no need to second-guess :)
@@Fish-Storyhave you done a video on your filtration system? I'm very curious how you have everything setup
@@resetgang6638 There are several videos dedicated to this. Try searching our videos by "filtration" "sump" "waterworks". We have 4 simple sumps for 13 tanks, the 25K has a shower tower filter, 3 tanks are on canisters.
Murray Cod have a wide tolerance to water conditions; these are the optimal water conditions for them: Temperature: 8°C - 24°C. pH: 7.0-8.0 · General Hardness: 50-200ppm.
Thank you so much! I had feared so and hence solicited info from the farmer who produced them. It seems one of us is very wrong. Probably me.
Hiya victor looked up the temperature on Google it says 8c to 24 c ..your water might have been to warm for it ..
Thank you so much! I had feared so and hence solicited info from the farmer who produced them. It seems one of us is very wrong. Probably me.
damn it! unlucky✌️
Like with the first one, I would say sorry for the loss but I don't think that will suffice in this case☹
It really hurts to see the second one go down, I was so hoping it would be ok. And even when you moved it to the tub, I am certain it was already on its way out because it looked just as bad as the first one.😢
To my eye, the 2nd one looked better but this might have not meant much, as shown the quick demise.
That blows buddy!!!
I'm from Aus and their natural habitat is not in the sub-tropical area of Australia. Look up the murray river. I've caught them before in this river and admittedly is relatively mild over winter but can get to 40C over summer. I would say just a prolonged exposure to warmer waters is not so good.
Thank you so much, always value and love the input from peers to who the fish being discussed are local. Yeah, maybe the surface water in Murray could get that warm but these guys seek out colder strata and spots I read and that's what saves them. I agree on the long term warm water killing ours.
Now u see why i rub fans and high oxygenation so the fish have consistency. I run an inkbird connected to a pair of high velocity fans that keep the temp at 81/82 when its 100 outside and we live near each other. Only u guys don't get the strong ocean breeze like we do on the east coast. It can help but when its hot af out l, fans will keep ur fish safe. I run a heat pump during the winter. It can be 40 deg outside and it stays 78/79 deg 24/7.
Thank you, Phil. As you know, we oxygenate our tanks and filters to the max and run cooling fans too on the tanks that need a lower temp. The cod was in the last tank at 82-83F. I don't think season to season consistency is a must have. I think the changes should be slow and the recommended temp ranges should be adhered to. Problem with this cod was the recommended temp range was different from different sources.
No, very disappointing,the last of the brothers :(
Yes, this hurts, Dean.
That's a shame, not much you can do besides run a chiller all summer. Sturgeon seem to be doing well though.
This'd be a dead end experiment - we'd get knowledge though, but no future. We cannot afford in the foreseeable future a properly large and chilled exhibit for a murray cod.
how much have you spent on fish? also big tanks like that? because i want to own everything like you have someday also is it possible to get pretty much any fish i want from rod? with permits or no?
IDK how much we spent on fish over the last 18 years that we have been most active in the fish keeping field. I'd guess at say $2000 a year, this could amount to crudely $40K over 20 years. And most fish I lost, especially when we moved cross country. ... The two Dolphin Fiberglass tanks cost us $32K. The ten Glass Cages 240s were close to $10K. The homemade 1800 gal cost us about $2K. The homemade 25K cost us $6K. ... There are many vendors out there in addition to PF. You can get any fish from them that need no permit to keep.
@@Fish-Story alright thank you man and yeah i don’t have to big of a tank rn ive got a couple 125 grow outs and a pond and ive lost quite a few fish some just don’t work out
89 vs 83 is hardly a difference to fish tbh I think you need to fix the chiller.
You probably mean 86F in the first tank vs 83F in the second tank. Yes, a small difference. The chiller works fine. The chilled tub was at 78F at the time of passing as I was slowly cooling the water for the cod.
@@Fish-Story ya it's so risky with how crazy the environment is to not be able to accurately keep your water at a desired temperature. With Florida increasingly getting warmer, have you thought about changing up how you warm/cool your water?
@@EvilxYardxGnome Thank you. Well, my thought is the opposite. I know what I can and cannot do with respect to the water temps and I am exploring what fish I can and cannot keep at these temps. Yes, our temps have been rising, both winter and summer. It used to be a touch too cold sometimes in the winters but not so lately, so we never have to heat the water anymore. We can only cool the water in some tanks by fans by 3F-5F at most. In other tanks it reaches 85-88F.
I apologize, I am not following?
@@Booneville2024 No worries. Thank you :)