What is a good nitrate level in aquaponics
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- Опубліковано 29 вер 2024
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Video description
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Nitrate are the last nitrogen molecule of the nitrogen cycle and are directly available by the plants. They are beneficial for the plants but we must keep them below a certain limit as they can affect your fish health.
How Nitrate appear in the aquaponics system?
They are produced by bacteria from nitrite.
What action do they have on fish?
They can generate the following defects:
Deformity
Strange behaviour (swim on the side, gap on the surface)
Poor feed conversion
Poor growth
Fast swimming
More disease
As you can see the impact of a high nitrate level on fish can be dramatic. For your fish welfare please keep them at an acceptable level.
What action do nitrate has on plants?
Nitrate are the main source of nutrients for the plants. Limited concentrations from 5 to 25ppm are perfect
What is an acceptable nitrate level for your fish?
Carps, catfish, goldfish and tilapia can leave in nitrate levels up to 120ppm but it is recommended to keep them 50ppm, with a target below 30ppm.
For trouts some sources report acceptance of levels above 500ppm but some scientific studies have shown effects below 100ppm! I would recommend to keep them in low concentration such as 30ppm as well.
How to balance nitrate in your aquaponics system?
If your nitrate are too high it may be because you don’t have enough plants to consume the production of your bacteria.
One of the options is to increase the number of plants in your system.
Another option is to use the aquaponics water to water your classic garden. It will lower the water level in your tanks and you will be able to top up the tank with new water which will dilute the nitrate and lower the concentration.
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Link of the vidéo
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What is a good nitrate level in aquaponics: • What is a good nitrate...
*What is your current NITRATE level and what is your technique to maintain it in the wanted range? 😜*
My Nitrate level is maxed out on the test kit.
I keep some perennials in the bed (Strawberries and Lemons) but mostly long lived annuals/biannuals. with open patches for those fast growing Lettuces. I feed @ 13g per day per square meter. Keep the water warm enough to where the fish stay hungry(and the plants/worms). No swirl filters yet (Coming up on a year now) but I may start separating some solids now that the beds have matured.
Just pure gravel ebb/flow beds that cycle every 15min or so.
I top off the auto fish feeders about 1 time per week (Fed 4 times a day since I have a very low fish population). I top off the water about 1 time per month.
It looks like I need to bring down the nitrate level slightly. Thank you!
I keep nitrates lest than 5ppm. Most of the time it doesn't register with the API kit. There'snot much need to have it any higher than that.
Thanks Bigelow, it's great, you must have a large growbed compared to fish biomass. what type of vegetables are you growing?
Cheers
@@AquaponicsRevolution The main crops are lettuce, tomato, and cucumbers. I have a couple of banana plants for fun!
Thank you very much for your video, how about nitrite range that good for planting?
You want to keep your nitrite as low as possible
I have a planted 40 gallon aquarium and my nitrates are very low, around 5ppm. Some of my plants are struggling and do not appear healthy. What can I do to increase my NitrATE levels to around 10-22 ppm? Thank you. Other water parameters are great!
Stop changing your aquarium water and you may want to increase the number of fish if possible. Cheers
So I only have to grow enough plants to gradually bring nitrate down to almost 0? That would be a perfectly balanced sysyem?
critanand from mauritius island merci beaucou mon amis
What if there low do I just add more fish
Hi Justin, as long as your plant are growing that's fine but if not you can indeed add more fish :)
What are you growing?
@@AquaponicsRevolution
I have a living wall with strawberries, moss, orchid, spider plants and pathos thanks for the help the plants grow good just don't want to hurt my fish
Great video keep up the great work
I'm glad you made this video most people have no clue about Nitrates. Make sure when you test you shake the bottles like crazy for the Nitrate test and let it stand for 5mins before checking your results. Otherwise your results are misleading. Although fish have different hardeness 30ppm is still to high, you need to get to atleast 10ppm . 5 is reccomend for the fish to thrive. For example 30ppm would kill off alot of species fry and juvenile fish after awhile! Peeps need to do water changes alot of them, which seems defeating in what is advertised as a closed loop system. Atleast the other vegetable gardens get watererd.
solar clapson it will gradually bring down the immune system. Think of it like living in a smoggy polluted city. Hence rivers and ocean have a nitrate of 0
@@SHANONisRegenerate No miss sensitive, fish in nature often have way higher nitrate levels. It's not that bad. Ammonia, Ammonium, and Nitrites will cause problems. I've had my smaller system close to 100 ppm between harvest and new plants and never had any deaths.
Josh Blick You don't understand the properties of Nitrates.
Research blue baby syndrome. Recommend for a human baby not to consume water that has nitrates over 10ppm. While your there research Nitrate Toxicity. The fact that your fish are alive in 100ppm is irrelevant. Here's another analogy for you. An obese person is still alive, yet significantly disadvantaged and most probably leading to a shorter life span due to implications caused from the weight. But yes they are alive.
@@SHANONisRegenerate You're right, just because I have several aquaponics systems going to grow and sell vegetables and breed and sell fish and shrimp I have no idea. And by the way, human babies don't live underwater. Go out to few ponds and test them. It may make your head explode though.