Simon is right on the nose, you have to feed your bottom feeders... the clean up the excess food, but if you don't provide excess food... well then you don't need them.
LauraF how do you talk your plecos into eating algae?? mine are lazy sob's lol.
no in all honesty clowns are scavengers that prefer a meaty diet so he will likely do the same job as the corries
bushies are into veggies and in theory are good algae eaters... in theory, but mine are lazy....
Ottos will eat algae but you are not set up for a school of ottos which is how they need to be kept. you don't have the room, you don't have algae (or you haven't told us you do, they need a lot) and with your stocking levels and your fish knowledge at 2 months i doubt you would have that much success considering how finicky they are about water quality.
Fish can only poop as much as they eat, my plecos eat flake and pellets and veggies not algae (they are lazy) corries would eat the same
cant have corries because you don't have room for 3 more 2" fish so thats out
I keep lots of plecos it's kind of my thing (and probably my area of expertise) first i will say that lots of the "clown" plecos i have seen photos of on this forum are not clowns they are common, second clowns max at 4" by the time his/her fish was 4" (that includes fins) they will have either a. a new tank b. some die off in stock c. the fish keeping expertise to keep that heavy of a stocking order.
Ummm but yes LAURAF is totally right why do you want a bottom feeder, no one really "needs" one it's a preference thing, i keep them because well i love plecos I really only keep cichlids to take up the rest of the space lol if you WANT one then the pleco is probably your best bet