Kuwahara Mushroom Mycelium Bottle 1400 Set of 2 I am raising nearly 100 Tarandus beetles annually. Kuwahara Mushroom Mycelium Bottle 2000 is ideal for raising Regius, Tarandus, and Golden Stag beetles. I can teach you how to use it, including breeding methods. Recent Status: Golden Stag Beetles: 18 Tarandus Beetles: 15 Regius Beetles: 10 Please consult if you want multiple sets. Type of insect-rearing supplies: Larval rearing supplies/Mycelium bottles