I want to upgrade my tank to 55 gallon or more and still keep goldfish. I want to mix different types of goldfish together. Is this all right? Is there special consideration i.e. feeding problem etc?

Also do you have any suggestion of mixture of goldfish to keep?

Thanks!

U can mix all diff kinds of goldies together, but there are a few handy rules to follow:

- Fancy (double-tailed) goldies better not go with single-tailed ones
- Goldies like bubble-eyes & celestials are better with their own kind (fairer on the food distribution)

So in ur 55 gal u can have 5 fancy goldies