a good external filter. tetratec 1200, fluval fx5, eheim classic 2217. something along those lines.
as for fish, ur probably better off having the convicts as the biggest fish and just getting a plec, some bottom dwellers (maybe yoyo loaches or something, not sure how loaches get on with convicts) and a nice school or two of tetras/barbs/rainbowfish (ones that wont get eaten or harassed to death).
i'd go with sand
as for fish, ur probably better off having the convicts as the biggest fish and just getting a plec, some bottom dwellers (maybe yoyo loaches or something, not sure how loaches get on with convicts) and a nice school or two of tetras/barbs/rainbowfish (ones that wont get eaten or harassed to death).
i'd go with sand