I don't think I understand this postLSN would be ok with 1, 2 or 3. Pimelodus genus - pictus, blochii, ornatus. Bolt catfish maybe. Smaller Doradids like mouse catfish, black top mouse catfish, Hassar, Doras genus. Smaller Bagridae, such as Mystus genus. Heptapterus genus, such as Rhamdia, Pimelodella genus. Schilbe family, grasscutter catfish. Silurids, such as Ompok genus. Suncat aka escipse, as a group. Synodontis. Larger Corydoras; maybe Splendes blochis. Hoplo catfish. Smaller bullhead. Smaller giraffe catfish.