Round-Tailed Paradise Fish

Round-Tailed Paradise Fish

Macropodus ocellatus

Also known as: Chinese Paradise Fish

💧 Freshwater ⚡ Semi-aggressive 🟢 Easy 🍽️ Omnivore

Cold-tolerant paradise fish species from China and Korea with a round tail fin instead of the forked tail of M. opercularis. Can survive near-freezing temperatures.

Tank Size

20 gal
minimum (30+ preferred)

Temperature

50–77°F
10–25°C

pH Range

6–8
water acidity

Max Size

3"
7.6 cm

Lifespan

5–8 years
typical in captivity

Swim Level

Top
preferred zone

Care Notes

Extremely cold-hardy — can survive temperatures down to near freezing, making it suitable for unheated tanks and outdoor ponds. Males are territorial but less aggressive than M. opercularis.

Feeding

Flakes, pellets, frozen foods, and live foods. Will eat mosquito larvae and small insects.

Compatible Tank Mates

None identified.

Use Caution With

White Cloud Mountain Minnow 1.5" Dojo Loach 10" Mosquitofish 2.5" Common Goldfish 12" Fancy Goldfish 8"

Incompatible With

Neon Tetra 1.5" Cardinal Tetra 2" Rummy Nose Tetra 2" Ember Tetra 0.8" Black Skirt Tetra 2.5" Serpae Tetra 1.75" Congo Tetra 3.5" Glowlight Tetra 1.5" Harlequin Rasbora 2" Chili Rasbora 0.7" Celestial Pearl Danio 1" Zebra Danio 2"

Check Compatibility

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