I'm from Australia, and recently received 4 goldfishes as a gift.
Unfortunately, the tank they came in was too small... And then I followed a pet store owner's advice and only bought a 22L tank to cater for the 4 goldfishes (each 4cm length)... now they are all sick!
I never realized I was a pet person until I had these fishes. I've only had them for 6 weeks so far, and I've already grown very fond of them, very attached too.
I certainly hope I can gain more knowledge about fishes on this forum, such that I can be a better owner to my beauties than I am right now...