Dragon guppies shine when metallic scales stay clean and the tail stays proportional. Here’s how we manage our lines.
Pairing strategy
- Keep pairs tight: select 1–2 trios with the best body lines and tail balance.
- Refresh every 4–5 generations: outcross with a compatible dragon line to avoid weak spines.
- Don’t chase size alone: oversized tails slow fish and reduce fertility.
Culling for quality
- Remove bent spines, clamped fins, or faded metallic scaling early.
- Keep only even colour blocks; random speckling signals drift in the line.
- Observe at 8–10 weeks under white light to judge true metallic quality.
Water and feeding habits
Stable KH (3–5 dKH), 24–25°C, and light but frequent feeding keep fins intact. Overfeeding pushes growth but softens finnage; moderate is better for long-term line health.