Phalacrognathus muelleri var.
Color morphs of Rainbow Stag Beetle. Green, blue, red, purple, black — various color forms created through selective breeding. Extremely collectible.
Lifespan
Adult 1-2 years / Larva 6-12 months
Size
25-65mm
Temperature
20〜25℃
Humidity
60〜80%
Jelly (adult) / Fungus bottle or fermented mat (larva)
Fixing desired color requires multi-generational selection
Grows on fungus bottles or mat. Temperature key
Lay in fermented mat. Prolific: 30-50 eggs
Sensitive to heat. Keep below 25°C
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Rainbow Stag Beetle (Color Morphs) is 20〜25℃. Recommended humidity is 60〜80%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Rainbow Stag Beetle (Color Morphs) is Adult 1-2 years / Larva 6-12 months. With proper care and nutrition, they can live a long and healthy life.
Rainbow Stag Beetle (Color Morphs) typically reaches 25-65mm as an adult. Size may vary depending on care conditions and individual genetics.
Rainbow Stag Beetle (Color Morphs) feeds on: Jelly (adult) / Fungus bottle or fermented mat (larva). Aim for a balanced diet with appropriate feeding frequency.
The price of Rainbow Stag Beetle (Color Morphs) varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Find listings for this species
Browse Insect ListingsRainbow Fish Species Guide — Jewels of Australia & New Guinea
Guide to rainbow fish: Boesemani, Neon Dwarf, Threadfin — species profiles, water requirements, and community tank compatibility.
How Much Does Insect Keeping Cost? Monthly Running Costs Explained
Monthly insect keeping costs for beetles and stag beetles: substrate, jelly, temperature control, and annual breeding cost estimates.
Insect Lifespan — Adult & Larval Stages of Beetles and Stag Beetles
Beetle and stag beetle lifespans by species for both adults and larvae, with tips on temperature and diet to extend adult longevity.
Summer Insect Care — Heat Management Guide
Summer beetle and stag beetle care: maintaining proper temperatures, substrate moisture, and jelly replacement frequency.