Persephone Betta

Persephone Betta

Betta persephone

Also known as: Black Betta

💧 Freshwater ✌️ Peaceful 🔴 Advanced 🥩 Carnivore

Extremely rare, tiny betta with a dark black body and iridescent blue highlights on unpaired fins. Named after the Greek goddess of the underworld. Critically endangered.

Tank Size

5 gal
minimum (10+ preferred)

Temperature

75–82°F
24–28°C

pH Range

3.5–5.5
water acidity

Max Size

1.2"
3.0 cm

Lifespan

2–4 years
typical in captivity

Swim Level

Top
preferred zone

Care Notes

One of the rarest bettas in the hobby. Requires very soft, extremely acidic blackwater. Species tank only. Critically endangered in the wild — responsible captive breeding encouraged.

Feeding

Live and frozen micro foods only: baby brine shrimp, daphnia, and vinegar eels.

Compatible Tank Mates

Cardinal Tetra 2" Chili Rasbora 0.7" Green Neon Tetra 1" Phoenix Rasbora 0.8" Exclamation Point Rasbora 0.7" Marbled Hatchetfish 1.5" Dwarf Pencilfish 1.2" Coral Red Pencilfish 1.2" Ruby Tetra 0.7" Three-Lined Pencilfish 1.5" Chocolate Gourami 2.5" Licorice Gourami 1.5"

Use Caution With

Rummy Nose Tetra 2" Ember Tetra 0.8" Serpae Tetra 1.75" Glowlight Tetra 1.5" Lemon Tetra 1.5" Black Neon Tetra 1.5" Flame Tetra 1.5" Emperor Tetra 2" Red Eye Tetra 2.5" Red Phantom Tetra 1.5" Espei Rasbora 1.5" Silver Hatchetfish 2.5"

Incompatible With

Neon Tetra 1.5" Black Skirt Tetra 2.5" Congo Tetra 3.5" Harlequin Rasbora 2" Celestial Pearl Danio 1" Zebra Danio 2" White Cloud Mountain Minnow 1.5" Bloodfin Tetra 2" Diamond Tetra 2.5" Buenos Aires Tetra 3" Scissortail Rasbora 3.5" X-Ray Tetra 1.75"

Check Compatibility

Want to check if Persephone Betta is compatible with a specific fish? Use our compatibility checker to build your complete tank.