Hi! I am new to this board....I was wondering if someone can help me out with a question I have. I have 2 of these columbian sharks, and when I first got them, both were pretty dark in color. I am aware that they can change color depending on the decor in the tank. I did have some live plants in the tank, but the fish got infected with ich, and the treatment I used killed the live plants. So now there are less plants, which makes the tank lighter.....one of my sharks (the larger of the 2) is a light almost whitish gray color, and the other is somewhat dark still. Would there be any reason that one would be light and the other dark? I was just curious if there was any cause for concern! Thanks for your help!
JoDee
JoDee