HI ...this might not be much help but a housemate of mine had a celestial and had to be really carefull feeding it as all the others got there 1st...however once it got to a fair size it would feed from his hand .......and be carefull of anything jagged in your tank as they can only see upwards..........obviously ..Ha Ha ..
Ok...i'm a bit worried. My goldfish have these little white things on their tails and the fins seem to be torn. I looked at a few other posts and it seem like they have ich and fin rot. I have a heater in the tank and it keeps the water temp between 74 and 76 degrees. I know for a betta you can raise the water temp to 86 for about a week, but can I do this with my goldfish? How do they get those kinds of diseases anyway?