Kuwahara Mushroom Spawn Bottle 1400 Set of 2 I've been successfully hatching nearly 100 Tarandus beetles annually. Kuwahara Mushroom Spawn Bottle 2000 is ideal for raising Regius, Tarandus, and Golden Stag beetles. I can offer advice on usage and breeding methods. Recent Results: Golden Stag Beetles: 18 Tarandus Beetles: 15 Regius Beetles: 10 Please inquire if you'd like to purchase multiple sets. Type of insect-rearing supplies: Larval rearing supplies/Mushroom spawn bottles