Planted Tank Obsessed
Join Date: Jul 2011
Location: Southern California
Cardinal tetras and neon tetras school together naturally, probably because they look similar enough.
Ember tetras... harder to find, but compliment a planted aquarium nicely.
Black skirt tetras, for a different tetra look, and are very hardy.
Rummynose tetras school tightly, most the time, better than neons and cardinals do.