Hey I was just wondering if I should add anything more to my tank? I have 8 fish in this 10 gallon tank, 3 platys, 3 neon tetra, a beta and a small sucker fish. I feel the tank can look empty at times and wonder if the fish should have more stuff to swim in or more fish in the tank. (Had tank for 3 months, first tank) any suggestions? Keep it the same?