I bought two blue Damsels about a week ago for four dollars each.I took them home and they started looking black!! I thought maybe my fish was going to kick the bucket! I then became amazed when they started turning light purple then different shades of blue.Im an artist and I think the Damsel seems to be underrated work of art!I cant believe they were just 4 bucks each. I know they dont play well with others and they seem to have the same attitude as my Weiner dog but they are cool fish,I named them Samson and Delilah. .....