I don't have them yet but I am considering two getting small feeder fish. If they live long enough to get big I have pond sitting in my shed that I've wanted to have set up in the future. I have read goldfish have a big bioload. Will I be able to clean their tank once a week like my other fish or will they need more care than that? I want to be sure I'd have the time for them. The tank is planted.
I used to keep goldfish but not under ideal conditions because I didn't know any more that what the pet store tells you. Miraculously despite that they managed to live at least 3 years.
If you're wondering I am going with feeder goldfish because this tank has been fallow for 3 months (after some fish got sick) except for snails and seed shrimp. I believe the tank would be safe for fish now but I am not positive. They are 15 cents and destined be eaten. I am thinking they might get new lease on life and I won't have to kill all the snails by taking the tank down. I've seen many posts where people reuse tank after it's run for awhile without fish and found it to be safe. I really used to enjoy my gold fish they don't come across as smart as bettas but they are joy to keep.