Hi all I currently have 2 parrot fish ( 2 inches each approximately) in a approximately 9 gallon tank. According to me I think they need a bigger tank and plus I have checked on the net which said that they do need a larger tank. But when I bought them from the shop the shop keeper told that 3 pairs can fit in that 9 gallon tank. Till now my parrots are still scared , shy etc. What do u think about it.