lines

I have recently set up a number of 40 breeder tanks and have decided to go primarily with Sponge Filters. The tanks will be used mainly for Fry grow out, a breeder group here and there, and quarantine tanks. What is the guide line for sponge filter size. For my canisters and HOB I go for 10 to...

Right now, I have one of my big display setups in the basement consisting of a 6' long 150 gallon sitting atop a 75 on one of Chris O'Leary's awesome custom metal stands. The 150 is filtered by an AC110 and 2 Rena XP3 canister filters. I want to swap out the 75 for a 125 and the problem is...