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Freshwater fish care guide

Paradise Fish

Freshwater aquarium livestock

Hardy labyrinth fish that can be territorial with similar-looking tankmates.

Starter tank20+ gal
Temperature64–79°F
pH6–8
Group guideSpecies-specific

Planning your aquarium

The library starting point is 20+ US gallons. Plan for the approximate 4-inch adult size and the species' normal activity, not just its current shop size.

The minimum group count is not a compatibility recommendation; assess temperament, sex, territory, and tankmates.

Mixed-species aquariums may need substantially more space. Tank length, adult behavior, filtration, and hiding spaces all matter.

Tank setup and behavior

  • Break up sightlines with plants or hardscape to create distinct territories.

Hardy labyrinth fish that can be territorial with similar-looking tankmates.

Food and feeding

Food options: Floating pellets, Flakes, Frozen insects.

Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.

Tankmate cautions in the checker

  • Avoid or investigate Betta Fish: Both are territorial labyrinth fish and may fight.

These are selected rule-based cautions, not a complete compatibility assessment.