I set up an African tank in an old 55 gallon aquarium that i replaced. I basically overstocked it with a bunch of juvinile africans - My 4 yellow labs seem to be growing much slower then then the others- is this normal? See the attached picture. One of the labs is posing dead center - there are 14 fish currently in the tank - (they started at about 1/2 inch now are 3-4 inches)
