So after about 2 weeks and like 8 dead fish we decide its time to go see the big guns we head to Pet Cetera to ask some questions. The associate that helped us was awesome, he told us that now that our aquarium was established its time to add some algae eaters to help keep it clean. So my roommate and I were trying to decide on the type of algae eater to buy. We walked into pet smart and there they were, a tank full of Pleco's we knew that was what we were going to get. They were so little and cute (kind of) and they sucked to the side of the tank, what an interesting type of fish. They were no longer then 2 cm's and really how big could they really get??? They'll be great for our little 10 gallon aquarium. NOT!!!!!!!! Right now they are both at 30cm's long and getting much bigger. That is in 3 years, apparently there are 3 different sizes of Pleco's and we got the medium ones. We have had to upgraded our tanks just to keep them and it still isn't big enough. The moral of this story, its ok to ask questions, and if the sales person doesn't know find someone who does because the last thing you need is 60 cm's of pleco's in a 20 gallon tank...........Where do the fish go?????