oh i know man ive been keeping fish for years, that pleco is about 7 yrs old, he's about 13 inches. the pacu is fairly large right now lol, he was almost dead when i rescued him from a friend. when i was in brazil, the hotel i stayed in had huge aquariums in the lobby, and there were some pacu's that were every bit of 2 and a half feet from belly to back. I know i'm gonna run out of room with them soon, i need to get rid of them really. i had a 300 gallon for a few years and it just got to be too much at that time to take care of with my schedule. i wish i had it back now.