I have a community tank, with the following fish; 5 Buenos Aires Tetras 5 Neon's 9 Glow-lights 2 Congo's 1 Rainbow Albino Shark 1 Red Tail Sharks 2 Cory Catfish (the little ones) 2 Clown Loaches 2 Neon Blue Tux Guppy's 1 Coolie Loach 2 White Mollies 2 Gold Dust Mollies 2 Dwarf Gouramis 2 Silver Sharks 1 Algae Eater (two tone) 2 Pleco (I think) Suckers (1 white, 1 dark tan) 40 fish, in a 4 foot tank plus, What I think is a Feather Fin Catfish. This one is growing fast and is very aggressive to all others. Although it seems to be more bark than bite, I am concerned about the suitability of this big bruiser in the tank. He does add character to the tank and I would like to keep him. Would love to hear others opinion of this fish in my sort of tank. And any other problems you may see arising from this mix. Any thought's?