Hello all! I need some catfish advice. I have an oddball/predator tank with arowana, gar, giant gourami, and soon to be peacock bass. I have plans for a very large custom tank in the future. I like the big guys like TSN and RTC but i dont want them because they get so big, its almost like they are the first thing you see in the tank. I dont want that. I just want a good cat that will act as a bottom feeder, look cool, and stay around the 8"-16" range. what do you suggest?