Betta Mahachaiensis is a rare wild Thai betta with metallic green-blue iridescence, strong genetics, and ideal for biotope or species aquariums.

Overview

Betta Mahachaiensis is one of Thailand’s true wild betta species, native to coastal provinces along the Gulf of Thailand. Unlike mass-produced ornamental bettas, this species maintains its natural genetics, behavior, and structure. It is highly valued by collectors, breeders, and aquarists who appreciate authentic wild-type lineage.

This species is known for its striking metallic green to blue iridescent scaling over a darker base body. Under proper lighting and water conditions, the shimmering coloration becomes especially vibrant.

Key Features

• Scientific Name: Betta mahachaiensis

• Category: Wild Betta / Freshwater

• Adult Size: 5–7 cm

• Temperament: Semi-aggressive (territorial males)

• Lifespan: 3–5 years

• Experience Level: Intermediate

Appearance

• Metallic green to blue iridescent scales

• Darker body base enhances shimmer effect

• Short, strong fins (not long ornamental fins)

• Wild-type body structure

• Intense flaring display in males

The natural coloration is more subtle but highly refined compared to commercial betta strains.

Temperament & Behavior

• Males are territorial toward other males

• Can be kept alone or in breeding pairs

• Displays natural flaring and territorial behavior

• Active swimmer with alert personality

Best kept in a species-focused tank to prevent stress or fighting.

Tank Requirements

• Minimum Tank Size: 5–10 gallons (20–40L)

• Filtration: Sponge filter or gentle flow filter

• Lid required (excellent jumper)

• Moderate to dim lighting

• Stable water parameters essential

Heavily planted tanks help reduce stress and enhance coloration.

Water Conditions

• Temperature: 24–28°C (75–82°F)

• pH: 6.5–7.5

• Hardness: Soft to moderate

• Ammonia/Nitrite: 0 ppm

• Nitrate: Below 20 ppm

Weekly 20–30% water changes recommended.

Aquascape Recommendations

• Driftwood and natural decor

• Leaf litter for natural feel

• Floating plants for light diffusion

• Calm water flow

Biotope-style setups closely mimic their natural coastal habitat.

Diet & Feeding

Carnivorous species requiring protein-rich food.

Recommended diet:

• High-quality betta pellets

• Live or frozen brine shrimp

• Daphnia

• Bloodworms (moderation)

Feed small portions 1–2 times daily. Avoid overfeeding.

Breeding Information

• Bubble nest builder

• Male guards eggs and fry

• Soft, stable water improves spawning success

• Requires careful pairing

Breeding this species helps preserve wild genetics.

Suitable For

• Wild betta collectors

• Breeding enthusiasts

• Biotope aquarium hobbyists

• Aquarists seeking authentic Thai lineage

Why Choose Betta Mahachaiensis?

If you want more than a decorative betta, this species offers authenticity, strong genetics, and natural behavior. It’s a true representation of Thailand’s wild betta heritage and a standout centerpiece for serious hobbyists.