fishcatch22 said:
you're right... I guess I just sort of assumed, because it seems like most of the cases I see daily...
anyway, can you give us your water params?
You should never assume things and give out information as factual based on that assumption. That could very well cause harm to fish if ppl take that advice and it is wrong.
Ross328, You may want to invest in a quality freshwater master test kit such as aquarium pharmaaceuticals so you can test your tank water and do maintenance as necessary to keep the levels safe for the fish. As others have said, one fancy goldfish should be kept in no les that 29 g, with ten addtitional g per each added fancy goldfish. Comets and Koi should only be kept in pondas as they grow extremely large.
As to why your fish died, could have been several things. Sorry to hear about your loss. My reccomendation to you is to read up on the tank size and needs of goldfish and go from there if you intend on purchasing another one.
As RBishop stated, if you are on a municipal water system, you need to add a dechlorinator to your water you use for changes to prvent destroying your biofilter. If you have your own well at home, you dont have to use a dechlorinator if you do not have a "chlorinator" on your well.
HTH
Blue