- Many fancies are not fast swimmers but they still need plenty of room to cruise about and turn easily. This means they need a tank with a large footprint just to have enough room to swim about comfortably. The lovely Pixie having a bad driving moment Common goldfish are more nimble than fancies but their overall size still means they cant turn on a sixpence.
- Goldfish are fairly hardy compared to more sensitive species, but you should still treat them with the same care you would give any other fish (e.g., regularly gravel vacuum the aquarium, service the filter, and test the water quality). The main caveats to remember are that a) they like cooler temperatures and b) they get much larger than most other pet store fish and therefore require a larger sized tank.

- When keeping goldfish in an indoor tank, youll want to follow the guidelines below to avoid stunted growth and ensure your fish becomes a picture of health. Take note; minor variations may happen in every breed of goldfish. While fancy goldfish dont grow quite as huge as common goldfish, the genetics and bloodline of your fish may cause them to grow bigger than what is usually expected of them, and this holds true if you groom your fish. Opt for a larger tank than what is recommended to give your fish more wiggle room.

This particular example perfectly highlights why Disadvantages Of Large Goldfish Tank Size is so captivating.