Home GreenShortz DIY Feeding BSFL With Coffee Grounds Feeding BSFL With Coffee Grounds Black soldier fly larvae #BSFL can be fed with coffee grounds alone. They won’t grow as quickly, but coffee grounds will sustain them. Share this:FacebookTwitterPinterest RELATED ARTICLESMORE FROM AUTHOR Can I Make #Aircrete Foam With A Shop Vac? Or Tire Inflator? How To Un-form Aircrete + Foam Generator Volume Test How To Make Aircrete With A Tire For A Compressor