Aiming4 Goldfish Care

Also I keep hearing to add salt to freshwater tanks.What is this for? I also have a community tank with platties and mollies and 1 betta.I’ve been losing fish because of nitrates and can’t seem to get the water back to normal.I just bought some bottom feeders .Any help?

the tank is 26 gallons. I do realize that it is too small for the fish when they are full grown, but i have many coldwater setups

Ok so I have a black goldfish. I had two,but one of them died like 10 minutes ago. It was gold,but it had brown and black junk on it. My black one has white stuff on it. It is like a translucent white,and it keeps coming off of him! Mine looks like this:http://www.petco.com/product/101072/Black-Moor-Goldfish.aspx?CoreCat=OnSiteSearch
So if you [...]

he is mostly black

I have a pond in my front yard with a black moor, goldfish, minnow, and a orange fantail goldfish. Why does my black moor sit and the bottom of the pond alot? He moves around but I often see him just sitting still at the bottom of the pond? The fantail does it sometimes but [...]

I just got a tank for my room - just a 5 gallon one so I can look at while studying
I think I may have made a big mistake - I have 4 Black Moors in the tank right now. They are very small in size and the tank has many freshwater [...]

Does anybody know if it is a good idea to combine these two fish?We had the betta in with a fancytail goldfish, a bala shark, and 2 other female bettas.The fancytail and bettas arent supposed to be in the same tank but they did fine.The problem is that the other 2 bettas gang up on [...]

My black moor goldfish, Requiem, seems to be quite ill. He was fine when I checked on him this morning, and turned on the light in his tank. This evening he is listless, and is floating two inches above the bottom on his side. His gills are flapping like crazy. Also, [...]