Aquaponics Blueprint review 5 | Ask The Aquaponics God Ep33
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- Опубликовано: 1 ноя 2024
- The School of Aquaponics
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Good stuff:) Wont the fodder rot out if you keep water running through it? Also, wont the run off from the fodder affect the pH and nitrates? I would think it would dirty up the water.
George said that he was going to have them inside of half barrels. We assume that he knows what he is doing with growing that crop as we have never grown it before. It shouldn't affect the pH if it isn't grown in any soil. He didn't mention anything about soil. Do you have some insight on how fodder is grown in aquaponics?
Oh, sorry I must've missed that part. The pH comment was more of a question. I know that when I soak my seeds a lot of junk comes off of them so I really don't know if that is going to affect the pH or the nitrogen cycle. They also cannot be soaked in water for very long once they sprout because they have a tendency to grow mold. If it is a flood and drain system I'm sure that would work provided the seats aren't too deep and provided that the flood and drain is on a timer. I only ever soaked my seats down with water once they sprouted like two or three times a day and I did not get much mold issues but I would think with more frequent watering they would stay moist and develop mold issues. I love the idea and I want to try it in my AP system but I'm afraid it will affect my water chemistry so I haven't really tried it yet:) I know my chickens would love it! Ha ha ha!
Also my thought process behind it was " I know this is in a AP system so I know there's no soil but rotting plant matter turns into soil. I wonder if rotting/mold on the seeds could raise or lower the pH.".
For instance, driftwood and Pete Moss can gradually buffer the pH of water down. I hope that makes sense my friend:)
By the way, I'm loving the videos my friend so keep them coming and God bless:)
That definitely makes sense. The amount of impact that it has on the system will be relative to the amount of rot that he experiences and the amount of fotter he has in the system. We have never used that type of crop, so it's hard to give an accurate answer to the question you're promising. We will just have to see what the gentlemen says once he provides an update. Fodder is not something that most people grow in AP. It may work in the system or it may be more suitable for soil application. We shall see!
Under the 'improved design' would a larger pump be needed? If so, what about the cost effectiveness of the larger pump needed? [how much more $/month, required?]
Very Good question Justin. The alternate design would likely call for a slight larger pump (to supply pressure), which will require more money, so you have to weigh the pros and cons and see which risk you're willing to take. If anything goes wrong in any part of the gravity feed then you're whole system is in jeopardy of crashing (which will cost you money in fish and plants in the long run). If anything goes wrong on the split flow then only that portion is off-line (which cost more money upfront).
It's just boils down to what your priorities are and risk you're willing to take, but you can expect a failure to happen for sure at some point. It's just the way it is. The price difference isn't that significant; especially on such a small scale.
wouldn't the media bed help filter the water before returning to the sump?
Yes, it plays a part in solids filtration.
I think the design is fine. I never like when water comes back to the sump where water is going back to fish before going to through the system which acts as the filter. I understood immediately what the person meant. water goes through the whole system before coming back to the sump thus removing nitrates and amonia. having the water go from the swirl filter, back to the sump, then back to the fish is not truly filtering the water. At this stage of my life I am more of an aquarist than an aquaponic farmer. The beds are the filter, and you don't skip the filter if you want nitrates/amonia to zero (or as close as possibe) by the time it comes back to the fish.
You're assuming that he has improper flow rates. With proper flow rates the water is circulated through the entire system frequently enough to remove all nitrates and ammonia. You're also assuming that plants take up all nitrates in a single pass through, this is incorrect as well. Our systems runs on a split flow and we can check nitrates coming from the filter and then from the plants and receive the same readings; That's due to proper flow rates.