Community fish rules
- Match fish by adult size, temperament, temperature, and swimming level.
- Peaceful does not mean compatible with everything.
- Do not mix tiny fish with predators.
Schooling fish group size
- Schooling fish usually do better in groups.
- Avoid buying one or two schooling fish unless the species is already established in the tank.
Livebearer stocking notes
- Livebearers can breed quickly.
- Watch male/female ratios.
- Provide plants or cover if fry survival matters.
Cichlid caution
- Cichlids vary from peaceful to highly aggressive.
- Do not assume all cichlids work in community tanks.
- Plan around territory, adult size, and aggression.
Shrimp-safe tankmates
- Many fish will eat baby shrimp.
- Avoid aggressive or predatory fish.
- Use moss, plants, and hiding places.
Saltwater aggression notes
- Many saltwater fish are territorial.
- Add order, tank size, hiding spaces, and compatibility matter.
- Research tangs, angels, wrasses, triggers, and damsels before mixing.
Reef-safe warning
- Reef safe, reef safe with caution, and not reef safe are not the same.
- Some fish may bother coral, clams, shrimp, or cleanup crews.
Adult size warning
- Buy for adult size, not juvenile size.
- A fish that looks small on arrival can still outgrow the tank.
Ask support before ordering CTA
If you are not sure whether livestock fits your tank, contact support before checkout.
