I have 4 2-inch mollys; I forget their exact names, but 2 are black and white speckled, and they look like this:
http://www.dkimages.com/discover/preview...
but without the long dorsal fin, while the other two are yellow with tails like a two prong stick. They live in a 10-gallon aquarium, which has proper filtration, a heater, and aquarium salt.

a.) is the tank too small?

b.) what vegetables should I feed them besides peas and some flakes?
Answers greatly appreciated!