comet goldfish

Hello Ive inherited a 40 gallon with about 20 comet goldfish and a pleco I know they are very big on releasing lots of waste so I haven’t added any substrate to it. Recently I have purchased a black eco planted substrate for promoting plant growth and would appreciate some tips on which plants...

Yesterday my friend bought a gold fish from nearest pet shop and the store guy sold it as a comet but this one seems like Shubunkin for me. Me and my friend keep arguing about that today. Somebody please confirm the breed.

Hi all, I have a common comet goldfish that my sister brought home from a fair who is about a year old. He grew up in my 20 gallon and then moved to my dad's 60 about ten months ago, and he has been doing fine. However I noticed he is kind of less energetic lately, and I think he has ich. His...

I have a fantail fish and he is swimming weird, like upside down or 'laying' on one side. Also, my comet fish isn't eating. I changed the water tank today. Can it be related to that or are they sick?

I'm pretty new to the hobby. I just won two comet goldfish at the carnival without knowing what that meant. I've done a lot of research, and while one of the fish died a few days after getting them, the other appears to be fine. However, the remaining goldfish and a pleco are currently sharing a...

My goldfish has gotten fat over the past few weeks very quickly and i cant tell if it has a disease, bloating or is pregnant. Its been going on for at least 2 months. She is a comet goldfish so the belly shows. Her scales are not puffy and she does not have symptoms like dropsy. She is swimming...