I just joined and I need a little help. I have a 50 gallon tank that I inherited from a friend that was moving and I think the tank is to small for the amount of fish in the tank and I really do not know the correct names for the fish but I will try - there are two "kissing fish" appx 4" long, two "silver dollars" that are about 4 " long and about 3" round. There is a "catfish" that is about 3" long, an orange algae eater, 4" long, an albino pecatmus(???) that is about 7 inches long. Do I need to get a larger tank?