To think he is only about 3 months old and already THAT big. There are also some trapdoor snails in there and he/she is almost as big as they are. I think the snail eats all the pleco's cucumber
I think it depends on the type of algae..I get the icky brown stuff but my sister somehow manages to grow the moss like algae (looks like the stuff for a moss ball) and that looks nice. Although I wouldn't want her water quality with her 2 goldfish and no water changes
Bristlenose plecos are supposed to be pretty awsome at algae eatting too, or at least that's what I have been told.