blackwidoe your one looks great, i have never has one that had had a proper red tail its mainly the bright orange ones!!! i see them in the shop and they look amaxing. i dont understand the probpel. this morning i made a water change and he was almost white but then he bagan to get darker. i was sooo scared as last time i just changed the water and half my stock dies. it was very tragic. but now i understnad their needs and began to use chemicals even though i disagree with it.