I treated the water with medication from the fish store. I thought the fish was pregnant, but it never laid any eggs. So I got concerned & talked to the guy at the fish store about it & we decided that it must be sick. Now I’m sick with worry about the fish! Basically, what I would like to know is, how fast the medicine will work. The poor fish looks like it swallowed a golf ball. How many days do you think it will take the fish to return to normal size, or how many days it wil take to at least go down a little in size. The fish still eats & doesn’t seem to be in any pain but I feel terrible about it. I was convinced it was pregnant. I’ve never seen anything like this in my life & I’ve had fish for 40 years. I don’t know why it happened either. I have an excellent filter system & regularly change the water, etc. What causes it? It’s a big tank & it has 5 other goldfish in it & they all show no signs of it. Is it common? Thanks for your help. I WILL pick a best answer.
The medicine is call Fungus Eliminator. It says on the bottle that it treats fish bloat (dropsy).