So I’ve decided I want to start breeding fish for some profit so that I can make some money back from the hobby. I’m going to breed dwarf cichlids and I’m going to use a racking system all connected to one sump. In total the system without the sump is about 220 gallons. Would a 55 gallon sump be big enough if I’m just breeding maybe 3 pairs of dwarf cichlids and some guppies? Any suggestions on efficient pumps for sumps? Also does any body have any idea how much wattage I would need to heat the aquariums? Any suggestions on good reliable heaters?