Silver tip sharks (columbian)

[countrygirl4]

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

 

[Dangerdoll]

as these fish age, they need to have a fresh as babies to brackish in their teens (for lack of a better word in mind for now) and eventually to full marine as mature adults. It could be that they are needing the saltier environment.

 

[countrygirl4]

Thanks for your reply...I just thought it was strange that one happened to be staying light and the other darker. I appreciate your help!