Fish: care sheets for families
Ask your vet about your own pet. This page is general information from the sources below.
Care sheets for betta and goldfish, from named sources such as the RSPCA, PDSA, the Merck Veterinary Manual, VCA and the CDC. Each says plainly how long they live, what they need and whether they suit children. A grown-up is always the real carer.
Checked October 29, 2026.
- Betta
RSPCA notes that betta types bred with very heavy 'rose-tail' fins can have health problems from the weight of their tails. - Goldfish
RSPCA says goldfish are often thought to stay about 12 cm long, yet some grow over 30 cm.
Sources
- RSPCA: Keeping fish as pets (checked October 29, 2026)
- RSPCA: Choosing an aquarium for pet fish (checked October 29, 2026)
- RSPCA: Keeping pet fish together (checked October 29, 2026)
- Merck Veterinary Manual: Providing a home for fish (checked October 29, 2026)
- CDC: Healthy Pets - Fish (checked October 29, 2026)
- RSPCA: What to feed your fish (checked October 29, 2026)