Sorry here also Cecil... Now back to your system, some questions:
How deep are your tanks?
Length and width? I'm guessing 2' by 16' (per side).
Do you have some kind of bracing system around the tanks? (to keep water pressure from bowing it out)
How big are the tilapia?
Is the black tile just to hold the liner down?
One more thing, is that enough water movement to keep the fish tank fairly clean and nitrite levels down?
