I currently have 3 discus in my 55gal and i am wanting to add some more fish to it. Here is what i am thinking.
4 discus(add 1 more)
8-10 cardinal tetras
2 keyhole cichlids
Would this work with the keyholes or no? I am also thinking of adding a pair of Cockatoo apistos instead of the keyholes. And with the tetras, i have seen alot of tanks with discus in them also have cardinals, should i stick to them or is there another tetra i should get??