Hi, I have a 530L tank (5ftx18”x30”) plus a 3ft sump (max 150L). It is fully cycled, parameters are settled and steady. PH 7.5 and GH 180ppm. It is mostly open sand substrate, with a large pile of rocks, and some bigger pieces of bog wood off to one side.
I’ve started off with 8 Clown Loaches...