01-29-2008, 01:38 AM
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"Red" tail black shark
Recently I saw some RTBS's at Petco, but their tails were gray. Is this natural? I'm certain they were red-tails, there was no mistaking them. Do they start off without any color and then develop it as they get older? Is this a sign of poor health? I know bettas frequently change colors for many factors, but do red tail black sharks do this as well? I thought this was a curious situation, but didn't trust any employees to know what was going on and give me a good answer.
Has anyone else ever seen this?