my tank is overstoked and my son has 2 angelfish, 2 pleco, 3 black skirt tetras, an upside down catfish, a sumo loach, a blue gouramie a yellow guppy 1glo fish and 4 columbian tetras in a 28 gallon tank. I didnt know this until i visited my sons room. hes 15 and sometimes after school he goes to the local fish shop and buys some fish . what can i do his angles will get huge please help any suggestions

Can you have a chinese algae eater with malawi cichlids?