I have at least 6 cherry shrimp in a 10 gallon right now. But it seems like every time i look, the colors are always different. Yesterday, i had 3 reds and 3 whites, today i checked, and i had 5 reds and 1 white. Is this natural, or is there something wrong. I just did a water change and they get enough food, but my tank temp. doesnt always stay consistent, could this be the cause of it?