Feeding your animals starts with how your feeder cultures are built — and structure plays a key role. TK’S WORMHOLE Fruit Fly Excelsior (36g) is a clean, ready-to-use wood wool designed to provide the ideal surface area for healthy fruit fly cultures, with each pack supporting up to 12 full setups.

Made from fine, stringy wood strands, this excelsior creates vertical space within your cultures — allowing larvae to pupate effectively and flies to climb, spread, and breed more efficiently.

Pre-sterilized and ready straight out of the bag, it helps maintain cleaner cultures while reducing the risk of introducing unwanted contaminants.

🔬 Purpose-Built Function:
Designed to improve culture structure and airflow, Fruit Fly Excelsior supports more stable, productive environments — helping you get better results from every batch.

🌱 Light, Clean, Effective.
Unlike improvised fillers, this wood wool is consistent, low-dust, and easy to portion — giving your cultures the structure they need without the mess.

✅ Use for: Adding structure and surface area to fruit fly cultures for improved breeding and development.

💡 TK’S TIP: Use around 3g per container — roll into a light ball, fluff it up, then gently press part of it into your BioBlend Fly Feast media (available on our website). This helps anchor it in place and keeps it from shifting or falling out during use.