I have a 72 x 18 x 20 tank that has an oscar and an ebjd in it, both around 5-6 inches. After just putting in 3 pictus cats last night, I just came home to 1 bitten in half! Yes, I had caves for them. I moved the remaining 2 to a 50 breeder. Any ideas of catfish that I can keep in that tank for life that will survive living with the SA cichlids?