How big do mollies get?

Question

I have a 10 gallon tank with 3 mollies, 3 cories, and 1 dwarf gourami. How big will my mollies get?

Answer 1

we used to have some,they don't get very big only about like a inch..

Answer 2

your tank is pretty crowded already

1.5-4 inches if you don't count tail length on breeds like the lyre-tailed. (Note there is a big variation between the breeds. Sailfins can reach 6 inches.)

Answer 3

Usually about 3 inches is the norm.  Ballon mollies only about 1-2 inches or so because of their compressed bodies.