Black Soldier Fly Larvae (BSFL) MEDIUM are a great staple for a variety of reptiles to due their extremely high calcium content and low fat content. These bugs do NOT need to be dusted down with calcium when being fed to various reptiles! They can be stored at room temperature for 1-2 weeks. If kept between 50-55 degrees they should last even longer! They require no additional food while being stored! These are NOT the trademarked Phoenix Worms but they are the same type of grub. The large BSFL are 5/8” and larger and perfect for various reptiles, fish and birds!