Excelsior

Excelsior (1-gallon bag)

Our 100% natural excelsior provides the perfect climbing surface for fruit flies in your cultures. This specifically processed wood fiber creates the ideal textured environment that supports healthy development while preventing overcrowding. The loose, airy structure promotes proper airflow throughout the culture, which prevents mold growth and moisture buildup.

Directions for Use: After adding fresh food to your container, simply add a 1–2-inch layer of excelsior and fluff with your fingers. Our excelsior works well for refreshing existing cultures or starting new ones. For best results, pair with our premium fruit fly culture containers to maintain a thriving, productive colony. Each bag contains enough excelsior to prepare multiple cultures, saving you time and ensuring consistent results.

**This listing contains 100% natural excelsior fibers only. No cultures, media, or insects included! Need a complete setup? We also have pre-made cultures here!