Hey guys before I go all the way with my info.wanting to be sure I am in the right spot ? I have a silver 8 yr old comet and on both sides of his body he has a red vein ( lateral ?)all the way across end to end and right at the base where the tail meets the body a red line going(up/down) and on the very bottom of his bottom fin there is a tiny bit of red/brown. He is still eating and seems to be active and seems ok. Any ideas would be great.Help !