Where are you getting your poop machine thoughts from? I have two full grown male BN's in a 29 and they don't create anymore waste than the endlers that are also in the tank.ok yeah now that i read it i know what you mean.i was trying to say that once it gets to 6 inch or a lil' smaller it will produce a lot of waste so if he really wants it he will HAVE to do frequent water changes
do you really want it?just imagine it a 6 inch fish and it makes a lot of waste if you still want it then you will do a lot of water changes.so now that you know this do YOU still want it?