Kubotai Rasbora (Microdevario kubotai)

Neon Green Kubotai Rasbora (Microdevario kubotai) is a dazzling nano fish known for its shimmering green coloration and peaceful nature. Native to Thailand and Myanmar, it's a favorite for planted tanks and community aquariums. 

Species Overview

• Scientific Name: Microdevario kubotai
• Common Names: Neon Green Rasbora, Kubotai Rasbora, Green Rasbora
• Size: ~2 cm (0.8 inches)
• Lifespan: 3–7 years
• Temperament: Peaceful, schooling
• Difficulty: Beginner to intermediate 

Tank Setup

• Minimum Tank Size: 15 gallons for a school of 8+
• Aquascape:
  • Dense vegetation (Java moss, Anubias, Crypts)
  • Floating plants to diffuse light
  • Driftwood and leaf litter for natural feel
• Lighting: Moderate to subdued
• Filtration: Gentle flow; sponge filters ideal
• Substrate: Dark substrate enhances coloration 

Water Parameters

• Temperature: 68–80°F (20–27°C)
• pH: 6.0–7.0
• GH: 4–8
• TDS: 18–179 ppm
• Water Flow: Moderate, not strong 

Diet

• Type: Omnivorous micro-predator
• Staples:
  • Crushed flakes, micro pellets
  • Live/frozen: daphnia, brine shrimp, mosquito larvae
• Vegetables: Blanched zucchini, lettuce
• Feeding Tip: Small mouths—use appropriately sized food 

Breeding

• Method: Egg scatterers
• Spawning Setup:
  • Dense plants or spawning mops
  • Separate breeding tank recommended
• Process:
  • Eggs hatch in ~72 hours
  • Fry become free-swimming in 3–4 days
  • Feed infusoria, then baby brine shrimp and microworms 

Tankmates

• Compatible With:
  • Chili Rasboras, Ember Tetras, Celestial Pearl Danios
  • Corydoras, shrimp (with caution—may eat fry)
• Avoid:
  • Large or aggressive fish
• Group Size: Minimum 8; more enhances confidence and color