I'm not really into them and I'm out of space for any new fish lol. I wanna squeeze one more goliath African tiger fish if I can get one around the size of my guys but the only space I have left are for bottowm dwellers. So I'm looking at a rutilus goonch catfish, tigrinus catfish, ornate birchir, or motoro stingray. Trying to stick to a predatory fish tank.