Fish that would be okay alone in a 20 gal?
We got our new 20-gallon set up and cycled. I put a piece of driftwood and a couple plants in there. My husband thinks that since our 55-gallon is going to be densely planted an full of small fish, the 20-gallon should have minimal decor and one or two larger fish. What can we get that's pretty and good alone or in a pair?
15 gal: 1 butt-ton Malaysian trumpet snails.
20 gal: 20+ various molly and platy fry.
55 gal: 40 neon tetras.
75 gal: 2 Taiwan reef cichlids, 3 pelmatochromis nigrofasciatus juveniles.