What do you mean about you use perlite. Around the tops are stones. Or am I seeing something wrong? Doesn't your perlite float with ebb and flow?
Gen Reviewed by Gen on . New to hydro here it is This is my set up im using a flood system and it floods 3 times a day the nutes in the water are a 10-15-10 hydro ponic nute about 1/4 dose with a cfl light on them now take a look at the setup and tell me if it will work. Rating: 5