Hi Frankie,

My 4ft tank has 140 watts of light, with CO2 and a AC fan to cool down the temp. Although the watts/gallon is not very high but good enough for me to grow all sort of plants. I rely on the plant for biological filtration in my tank. Another 3ft tank has 60 watts of light and the same CO2 and AC fan setup. This is a paludarium for my amphibians, only half of the tank is filled with water and were heavily planted with low light plants and the woods above water are planted with java moss, x'mas moss and riccia. The mosses grow better emersed with constant stream of water going over them.

That's the setup of 2 of my main display tanks. The list can go on with the other tanks that I have. How big is your tank?

Joo