The bigger the tank the better. IMO, at least a 6 footer. They get pretty big and grouchy with each other, lol. Hecklii like to breed in tunnels. I've seen where some have had some success using 4=5" PVC buried in the substrate.
The bigger the tank the better. IMO, at least a 6 footer. They get pretty big and grouchy with each other, lol. Hecklii like to breed in tunnels. I've seen where some have had some success using 4=5" PVC buried in the substrate.