Teelie
Fish Aficionado
I've heard that Gourami can be aggressive with snails and I haven't heard anything about Red-Tailed Black Sharks being aggressive with them. I have 9 and was wanting to put at least three of them in there, though not if they'll become an expensive meal for the fish. The gourami I have are 3 Spot, not adult sized yet though one is juvenile sized, the other is smaller.