Hi Lisa, Welcome to the forum .... glad to have you here! Sounds like you've got the start of a huge aquaponics system going for you. I kow nothing about the prawns, so I can't help you there - but i'm with you on the Tilapia, that's the way to go as far as fish, in my estimation. With you living in Florida, you should be able to find a lot of Duckweed, waterletuce, azolla, and other plants that the Tilapi would eat ..... in addition, I have Guppies that I allow to swim with my Tilapia fingerlings .... as the female Guppy gives birth, the young can swim for a haven of plastic plants floating on the top ..... but the Tilapia usually are faster than them and intercept them ..... eventually, the Tilapia will get too large for the Guppies and eat the females and males, and that will be the end of that food fest. As the Tilapia get older, I plan to put the Marmorkrebs into the tank, and as they have their young, that will give the Tilapia more fresh food. They will also eat lawn clippings (non weed-treated or fertilized), lettuce, spinach, and other green veggies from what I've read. Just a few things I can think of to keep my tanks as "organic" as possible.Originally Posted by Lisa urban farmer
Another thing ..... if you could grow algae, hey love algae
Again, welcome