thanks for all the tips from PallasAthena and compliments from everyone else! the larger comet is from a pond where my mum has worked(dont worry they said we could have one!) which was about 1" when we got it and is now at leat 5"! The feeder(female and fat) I won at a fair 4 years ago and as I was only 8 I didnt know a lot about fish so I just put it in with my black moore, shubinkins, another comet and a redcap oranda. However we found out that it had ich and we tried to treat it but all the other fish got it(we didnt have anywhere to isolate it) and then i woke up one morning and all the fish were dead apart from that one!It is now named murderer! the shubunkins where bought from the lfs about 3 years ago. The young goldfish were bought this summer and the tenches about a month ago. the thench were mostly black but have turned more golden really quickly! sorry for going on!