Calcium in Aquaponics Systems
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- Опубликовано: 14 окт 2024
- In this video, aquaponics expert Dr. Nate Storey discusses how calcium works in your aquaponics system and what to do when you might have a calcium deficiency.
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I had really soft water and no reading on the GH or KH water test kit. I added bags of crushed coral in my sump. Worked a charm. Now and then I add some crushed eggshells too, directly to my Yabbie tank. Raised my PH as well as added calcium to the system.
Thanks for the comment! Great tip for our viewers.
What about the free key? Is it no longer free! Where can I get it like you said?
Right? No link.
could you show us what you use to test calcium.potassium,sulfur,etc
You mentioned in videos that having too much calcium can affect other nutrient uptake in plants and having too many carbonites in the water can also prevent PH from going to the optimum 6.2 to 6.4 range. How do you measure the carbonite concentration in the water? I'm from the aquarium hobby and would like to know where you find the best balance of carbonites for growing produce and keeping fish in your systems. Thank you!
Just maintain a stable KH of at least 4, you can use potassium bicarbonate to achieve that.
Thank you for this video and all your previous information. Does your heat exchanger just heat the air in your greenhouse or does it heat your fish water as well?
Hi, thank you very much for all the information you share. Consult you if after applying calcium chloride, can I apply potassium chloride? example the next day. or when could it be? please help.... rgds
Hi, great video as always. We are growing mostly lettuce in our system, but they are pale and a lot smaller than the ones we planted in the soil, would you have any suggestions? Thanks
Usually, when lettuce is pale, and there is plenty of sunlight, it's a nitrogen issue. Test your nitrates. If they're low and you can keep your ammonia in check, I'd bump up your feeding to get a little more nitrogen to your plants. Good luck!
Thanks for another very good video! I have just one question. Is it safe to use calcium carbonate in the aquaponics?
sorry, just found the answer in your site. Thanks anyway and keep doing this good work =)
is it safe..?
Great video. the link to they key seems to be not working. Could you please let me know how I can access it please.
What about crushed oyster and sea shells? How much calcium would a case of fresh crushed oysters produce?
Hi, Dr. Nate I tried clicking the free key link. But it says the link is not found. Can you provide another available link ?
Thanks Chris
I didnt realize you could foliar spray calcium
Hello love your channel. I need help with deficiencies and found u have a link to a key. Unfortunately it is not found. Would you be able to help me in any way possible to get it. Thank you
hi Dr Nate do you mind to recommend any brand or test kit to measure calcium?
I'm just now seeing this 7 years later as I recently began aquaponics a few months back but I'm not seeing the deficiency key that you keep referring to. I've gone to website and I don't see it there either. Am I missing something?
Hello Donna! We are working on a better key with updated information, stay tuned and we will be putting this on the ZipGrow website soon!
Thanks for watching!
In precalculus, I remember practicing Systems of Equations problems that look similar to how Ca, K, and Mg are to be kept in synchrony with other conditions.
Have you seen or know who may have seen how it would be applied with positive results at all?
Is Calcium Nitrate safe to use in aquaponics ? Thanks for the reply
Hi there - thanks for tuning in. Yes, calcium nitrate is safe in AP systems, but only in small amounts! Best of luck!
Can i Add calcium nitrate to aquaponics to combat calcium deficiency if my nitrate levels are low? Thanks for the reply!
Where is the link to the key?
Unfortunately the link to the manual is now inactive as this is an old post. That e-guide was updated in 2020 and now exists on UpStart University.university.upstartfarmers.com/ It's $2.99 for the download. I am however happy to send no charge by email if you can email marketing@zipgrow.com - thanks. We are in the process of updating broken links, so our apologies for any inconvenience.
Is it true that Ca EDTA react with Mono Potassium Phosphate ? Especially on higher pH
What about throwing a few chunks of cured coral (aka live rock) in your sump? Wouldn't that supply Calcium and buffer the pH at the same time?
Hi Jeff Letendre that's just calcium carbonate, which you can use in systems with low pH. If you have neutral pH system, I wouldn't recommend it. Good luck!
Sir can I use jypsum in Aquaponic system . please tell me how I add jypsum in Aquaponic system for calcium defecensy
Can I use dolomite to reduce PH in my aquaponics system
the water source I have for my system is rain water. How do I test the water regularly for nutrients, I have access to well water however there is sulfur in it. I do not know how to rid the well water of sulfur. Or how best to test the rain water>
Your key is not available for us in South Africa
Very unfortunate
We are grown if romaine in nft and the stalk is very skinny... Possible calcium deficiency?
Hi,
I was hoping you could share with me the brand of chemicals you use. I live next to Ace Hardware and they told me to give them the brand names that way they can order it for me. I just bought 12 more towers to go with 4 i already have and my system is showing signs of deficiency.
I just cant afford to take an unknown risk.
Hey Clint Smith - We use a Miller brand chelated calcium.
Thank you
Does calcium chloride hurt fish in small quantities?
Good question. Chlorine in small amounts can be toxic for fish. Calcium nitrate (PureCal) is a great substitute for calcium chloride when working with fish. However, make sure the fertilizer packaging states it’s “ammonia free” as ammonia is also toxic to fish.
Fish are able to handle low levels of nitrates, but higher concentrations of nitrates may harm them.
theres one thing i was wondering. can you use natural mineral water to supplement things like magnesium and calcium?
ie. i often drink mineral water that has Mg, Na, Ca, HCO3, SO4, Cl....
We'd recommend sticking to hydrated lime or some salt instead. It'll be much easier to wrap your head around. Good question though!
Is the EDTA chelated calcium safe?
hi calcium hydroxide is hard to get where I'm from but calcium carbonate is more avalible white lime. Can I use calcium carbonate to raise the ph and if so how much per gallon I would have to use and must I also use it 50/50 with potassium hydroxide to keep the potassium and calcium at balance levels thanks.
yes, it is recommended to use 50/50. You can use CaCo3/white lime.
I have well water and it's extremely hard ...like 11 and comes from the tap at 7.4+ ph and a little less if it has rained a lot. 250ppm cal/mag if I remember correctly. I maintain the system around 6.4 (6.0-6.7 being low or high). My ppm meter reads between 700 and 750. I alternate my pH up with hydrated lime or potassium bicarbonate (earth juice). I started using the EJ as a buffer and pH up until I saw your video suggesting using hydrated lime. My carbonate hardness would fall to nothing if I didn't add anything. I have been unable to test actual levels though. Do you see any issues with anything or give any advice to ward off issues?
Wow. That's hard water. Honestly, that's workable but only in a very old, mature system where you aren't topping off significant volumes. I will say that if your system is running down into the 6.0 range without adjustment, you're probably ok though. If you do have tons of calcium in your source water though, I'd recommend cutting back on the amount of calcium you're introducing regularly. This is assuming that what you're doing now isn't working. If your system is running a nice pH range (6.0-6.7) and you're not seeing deficiencies, then what you're currently doing is probably ok. Is your ppm meter measuring Ca specifically, or is it a general measurement?
Just a general measurement. I have been adding a mixture of RO and well water to top it off. I haven't seen any noticeable change in my water hardness though. The test strips are always on the max. Been doing RO water for about 4 months or more. The only deficiency I have at the moment is sun. Are there ways to test for individual nutrient levels? I am planning on expanding the system into a greenhouse with much better sun exposure and probably 2.5 times more sqft and 4 times the volume with high roof. Many of my plants are really reaching for light so my fruit production has been limited. Supplementing light has helped but not enough still. Have been relying on southern sun coming into first floor windows. That is now quickly diminishing. Thanks for all the videos. I have learned so much and it has definitely given me the confidence to spread the word. Overgrowing the current paradigm!
aquapontif Ok. Well, if you have a bunch of built up carbonate in your system it may be dissolving back in, but I really think that that's unlikely with a pH of 6-6.4. If you're not seeing deficiencies, I don't think you probably have a problem. If you have access to RO, continue using it, and work on that light! I'm really glad that our videos are useful to you. Thanks for watching!
Is chlorine safe?
Speaking about supplements, I saw in another video a suggestion to add trace minerals into your system as a way to have healthier fish, plants, and food for the family. I believe in taking supplements on a regular basis, to include trace minerals, for a stronger immune system. Have you heard of this and what do you think? Will you actually be intaking more trace minerals from your veggies if you add them into your system? Will the plants retain the trace minerals, making them even healthier for people?
how often can i foliar feed in the week
did you say the Key was free? your link is saying its 99 cents ?
Hi +WhatAmI “TheKingdomeWithin” IsItInMe - Yes, it used to be free, but we've upgraded it and it's worth a whole lot more now! $0.99 is still a steal. Thanks for tuning in.
I can measure calcium. What are good levels to look for?
Hey Jeff Sullivan - check out our blog post on this topic: verticalfoodblog.com/calcium-in-aquaponics/
"If you have the means to test calcium in your aquaponic systems, you should be shooting for at least 40-70 ppm calcium (with other nutrient levels at recommended levels! See other blog posts.)."
I am legal blind and cannot find your download for mineral deficiency charts ... Pkease help ....
+john kirby Sure John. Can you send an email? the.team(at)brightagrotech(dot)com
email link doesn't work ...
+john kirby Sorry - we don't link it in comments to avoid spambots. Just replace the (at) and (dot) with the at symbol and a period.
Chlorine is toxic to plants?
I see that you are charging for the "free nutrient deficiency key". Is that true?
That is correct, Gregory Mathers - sorry for the outdated information. You can find the key here: shop.brightagrotech.com/nutrient-deficiency-key/
what range should I have my calcium levels
+silverarm32 - If you have the means to test calcium in your aquaponic systems, you should be shooting for at least 40-70 ppm calcium (with other nutrient levels at recommended levels! You'll find all that info and more here: blog.brightagrotech.com/calcium-in-aquaponics/
thanks
If Calcium is increased on the fish diet side of Aquaponics, wouldn't that tackle two problems at once?
I SEND aquaponic videos to african but its not worth my while its far too complex i need to be a chemist to grow vegetables it seems. ,