My tank has 2 pumps.A Ehiem 2215 and a marineland 350.For fish I have 3 Bolivian rams , 3 Appisto Euntous, 2 Nanacaras 1Panda corycat, 6 whiteclouds, 5Harlquin rasboras, 5 cherry barbs. I would like to and a bunch of COLORFUL schooling tetras, 2-4 other S.A.Rams, 2-3 other Appistos, A CHECKERBOARD CICHLID a Lime cichlid.1 Aquedians curveips?.Some odd or colorful cats , 2 small plecos.Last would be a pair of angelfish and 2 small Kribs.The tank eventually will have a 4ft by 6-12inch island of plants in the middle and 1ft of treeroots on each end lots of caves . The pumps give a small current going round the outside of the tank.This tank is in the main living room as a divider between dinning room no wall.So what do you think to much what would be good for tetras not Congos.