Betta Koi PX Male

Betta Koi PX – Long Format Care Guide

Common Name

Koi PX Betta (Male)

Scientific Name

Betta splendens

 

Origin

Southeast Asia (Thailand, Cambodia, Vietnam)
(Captive-bred ornamental variety, selectively bred for Koi coloration)

 

Appearance & Coloration

The Koi PX Betta is a short-finned male Betta notable for its koi-inspired coloration, typically combining white, red, black, and sometimes metallic blue markings. Each fish is unique, with individual patterns resembling koi fish found in ornamental ponds. The PX (Plakat Extra) fin type is more streamlined, allowing for agile swimming and durability compared to long-finned varieties.

 

Fin Type

• Plakat Extra (PX) short-finned

• Streamlined anal, dorsal, and caudal fins

• Less prone to tearing compared to long-finned Bettas

 

Temperament

Semi-aggressive to aggressive.
Male Koi PX Bettas are territorial and should be housed alone. Females may be housed in groups but require monitoring for aggression.

 

Tank Size

Minimum 5 gallons recommended.
Larger tanks (10+ gallons) provide stability and swimming space.

 

Tank Setup

• Heated freshwater aquarium

• Gentle filtration with low flow

• Smooth décor and live or silk plants

• Floating plants and resting areas are beneficial

PX Bettas are active swimmers and appreciate open spaces.

 

Water Parameters

• Temperature: 25–28°C (77–82°F)

• pH: 6.5–7.5

• Ammonia/Nitrite: 0 ppm

• Nitrate: <20 ppm

Stable water parameters are essential for color retention and overall health.

 

Filtration & Flow

Low to moderate flow.
PX Bettas tolerate gentle movement better than long-finned types due to their streamlined body and fins.

 

Diet

Carnivorous.

 

Feeding

• High-quality Betta pellets or granules

• Frozen/live foods: bloodworms, brine shrimp, daphnia

• Feed small portions 1–2 times daily

Avoid overfeeding to prevent bloating and swim bladder issues.

 

Compatibility

• Best housed alone

• Can coexist with peaceful, non-fin-nipping species in larger aquariums

• Never house two males together

 

Health & Care Notes

• Hardier than long-finned Bettas, but still monitor water quality

• Regular water changes (25–30% weekly) recommended

• Observe fins and body for clamping, fraying, or discoloration

 

Care Level

Easy–Moderate

PX Bettas are beginner-friendly due to their short fins and hardier nature.

 

Signs of Good Health

• Bright koi-inspired coloration

• Active swimming and curiosity

• Healthy fins and body

• Strong feeding response

 

Signs of Stress or Illness

• Clamped fins

• Lethargy

• Loss of color

• Refusal to eat

 

Fun Fact 

The Koi PX Betta combines the vivid, koi-inspired color patterns with the hardiness of the Plakat Extra fin type, making it a stunning and durable centerpiece for freshwater aquariums.