Excelsior in shredded aspens
 Shredded aspen excelsior is an all-natural substrate that increases the surface area available for fruit fly cultures. By providing a shredded texture, it promotes better aeration and creates an optimal environment for fly development. This material is also biodegradable and helps maintain a clean and healthy habitat for crops. Its use is ideal in bioactive systems, where increased surface area can help support a healthy population of microorganisms and other beneficial organisms.