Which sand is it? I've used a few of them, and as long as its not moonlight sand, I don't think you have anything to worry about. Moonlight sand is just ridiculously fine - like beach sand. Not practical for many aquarium applications.
Neons will occupy the lower half of the tank. I would ultimately have more than 4 Corys, but 4 is a good start.
Black neons are good schoolers and will stay in the top half of the tank. Other choice for SA fish or the upper region of the tank would be hatchets. At least I think they are SA. I don't really know much about them.
Neons will occupy the lower half of the tank. I would ultimately have more than 4 Corys, but 4 is a good start.
Black neons are good schoolers and will stay in the top half of the tank. Other choice for SA fish or the upper region of the tank would be hatchets. At least I think they are SA. I don't really know much about them.