Terrarium vs. Windowsill for Mixed Carnivores in Canada: Light, Dormancy, and Species Separation

A 20-gallon terrarium with a single fluorescent tube (5,000 lumens) is grossly inadequate for Dionaea, D. tracyi, and N. mirabilis. These plants need 25,000+ lumens and seasonal cues.

Critical Issues

• Light: 10× too dim. VFTs need 30,000+ lumens to thrive.
• Dormancy: D. tracyi (Florida) tolerates mild dormancy; Dionaea requires 3–4 months at 35–45°F, 8 hrs light.
• Humidity myth: Most CPs adapt to 40–60% household humidity.
• Species conflict: Lowland Nepenthes needs warm nights; temperate plants need cold.

Solution: Separate & Simplify

1. VFT & D. tracyi: Cold windowsill (unheated room) or fridge dormancy (Dec–Mar).
2. Nepenthes: Warm, bright windowsill or lights (70–80°F day, 60°F+ night).
3. Pinguicula: Identify species—Mexican = warm/dry winter; temperate = cold dormancy.
4. Light upgrade: 4–6 T5 HO tubes (6500K) for growing season.

Saskatoon Winter Strategy

South window + supplemental lights for tropicals; unheated room or fridge for temperates. No terrarium needed.

Light drives everything. Fix that first.