Hi. Can anyone help. We bought 2 fish about 3 months ago which we have now discovered were dyed. Had we known this at the time we would not have bought them. One is pink and the other blue. 2 days ago the blue one suddenly had no top lip. He is not eating and his mouth is constantly on the go. Just looks like a big hole now. It looks pretty terminal to me. Can anyone assist here. Don't know wot to do for the best. Water conditions all ok, and other fish all fine. Have seen no signs of bullying from other fish at all.. HELP. Thanks...