Got some questions. Got a call from a LFS. Say they got in a 10-12 inch RTC on trade and am I interested for $40. Go to look at it and it's closer to 8 inches. Also has gill curl on one side and at the moment ick. Noted the eyes as cloudy and spotty, the tail not very bright and the belly more of a darker yellow than white as I've seen on others. Are these normal(yellow belly, dark tail), curable or reversible(gill curl, cloudy eyes). Is it worth taking or should I bypass?