I have finally set up some new tanks, Three, four foot tanks one on top of the other. I have divided two in half, as breeding tanks. So the top tank has a large canister filter and will be used as a grow out tank. However I am not sure what to do with the bottom two,(four). Do I use individual canisters or buy a big pump and connect sponges to them. I DONT want to do daily water changes so I need good filtration.

Also what about lights, they will get dim light in the day time, but do they need additional light? how much light do they need? should I put lights on a timer so long each day?

I have a fully cycled filter to add to one of the small tanks as I am hoping to set it up quickly, I have a pair trying to produce in a community tank. I will also add a sponge. However this will only be tempory as I would like a good system for the lower four tanks. Any ideas I'am not handy, hubby is but cant push my luck too far. Any advice would be appreciated.