Had a fish for ages... but his friend died, so on hte weekend, I got him a new friend.
Turns out, his new friend was more of an enemy.
Last night, I went to check on them (I thought tehy had been showing some courting behaviour... turns out, one was just trying to kill the other!) and noticed that my original fish (Charles) had one of his side-fins TOTALLY GONE! The other fish must have eaten it (he also had signs of being bitten on hte head too!).
I wasn't sure how the fish would do, so I removed the MEAN new fish (Diana) into her own tank so that poor Charles wouldn't have to have anything else eaten off.
This morning though, I got up, and poor Charles was floating belly-up in his tank.
Stupid new Diana fish - HATE HER. I've never really LOVED my fish, but I suddenly felt so sad and upset when I saw poor Charles' fin eaten off... he was working with all his might to stay upright using just the one side-fin.
Found out online that Charles was a "fancy" goldfish... and Diana was more 'Common'... so that's why she may have tried to kill him (I dunno why they do it, but I jsut read about it online).
At least I know better for next time. I'll hopefully get a much bigger tank soon and only put fantails in there... Diana can stay in her own little fishbowl forever.