A while back there was a lot of interest in aquaponics for cannabis, but the aquaponic sub forum here is very quiet. I've wondered whether this is because AP is tricky and the water too high in N, but lacking K.
I have an AP system and use the water everywhere, it's full of microorganisms. The filters fill with fine solids, plus N and to a lesser extent P. The filter water is black, I drain it straight to my garden beds, which have plenty of biochar. Sometimes I also add EM, kelp extract and molasses, then add an air stone and let it bubble for a few hours. For this you need to turn off the pump, so tough fish are required.
Catfish seems indestructible, they can go weeks without food or a water change. Despite my best efforts I'm yet to kill one. Tilapia aren't nearly as tough, I've managed to kill plenty.
The fish can be fed soldier fly larvae, duckweed or moss, which can be easily grown. Soldier flys live on food scraps and you also get castings.
If I was to move house I wouldn't bother with an AP system, too much work and too much space required. Instead I'd do something similar to the highly technical drawing below.
I'd like to hear others thoughts and any ideas ppl may have.
I have an AP system and use the water everywhere, it's full of microorganisms. The filters fill with fine solids, plus N and to a lesser extent P. The filter water is black, I drain it straight to my garden beds, which have plenty of biochar. Sometimes I also add EM, kelp extract and molasses, then add an air stone and let it bubble for a few hours. For this you need to turn off the pump, so tough fish are required.
Catfish seems indestructible, they can go weeks without food or a water change. Despite my best efforts I'm yet to kill one. Tilapia aren't nearly as tough, I've managed to kill plenty.
The fish can be fed soldier fly larvae, duckweed or moss, which can be easily grown. Soldier flys live on food scraps and you also get castings.
If I was to move house I wouldn't bother with an AP system, too much work and too much space required. Instead I'd do something similar to the highly technical drawing below.
I'd like to hear others thoughts and any ideas ppl may have.