I gave my buddy back his convicts (that were in my 10 gal) and moved my betta to a 10 gal along with the other fish that are now in there. I like this fish SO much better now that he's got some room to move. but my question: There's a bit of algae growing and I want to put in a pleco, what is the smallest pleco I can put in a tank and will a betta attack it (since they are usually brown)