BWAHAHAHAHA MORE FISH!!!!

I know the two main newbie problems are overstocking and overfeeding - I totally get why, buying fish and feeding fish are the best parts!
I will definitely think about increasing the schools I have - I like these fish! But I'm kind of hankering for a betta... I'm a sucker for a hard luck case, and those little cups get to me.
I'm seriously considering getting a bristlenose pleco - there are some breeders in my part of the world so they seem to show up at the fish club auctions. Tried to buy one this last auction but was outbid - it was the semiannual (big) auction so there were too many buyers there, I'll have to see if I get lucky at the mini-auctions they have at each meeting!
However, there are some interesting options at the LFS - they've had clown plecos in the past, very cute. They currently have a butterfly pleco and a flathead pleco(L17) - both stay small, but am I correct in thinking they're not the algae eaters the bristlenoses are? They look less active from the profiles I've read online - anyone have experience with these?