# Click here for a list of stag beetle and rhinoceros beetle products on Mercari! Developed for those who want to raise rhinoceros beetle larvae at a low cost and make them large for egg-laying. This is an offering of "High-Cost Performance Fully Ripe Fermented Rhinoceros Beetle Mat". This mat is made from a mix of oak and konara oak sawdust, crushed and blended with shiitake, kikurage, and nameko mushroom substrates, and fermented slowly for 5 months. It also contains 5 types of nutritional additives. Both domestic and foreign large individuals are emerging, and thanks to this, the repeat purchase rate is quite high. By blending multiple mushroom substrates, the beetles eat well and become large individuals. We have received many reports that fermented mat-type stag beetles such as Miyama stag beetles, sawtooth stag beetles, and flat stag beetles have also grown large with this mat. The key to growing large rhinoceros beetle adults is to feed the larvae a lot of high-quality food during the larval stage. Rhinoceros beetle larvae are big eaters. "High-Cost Performance Fully Ripe Fermented Rhinoceros Beetle Mat" is recommended for those who are raising many larvae at a low price. It is also popular with foreign breeders of Hercules beetles, etc., and we receive many repeat orders. It is also attracting attention from insect shops and rhinoceros beetle specialty stores nationwide, and we are receiving a flood of orders. Also, when used as an egg-laying mat, females lay a large number of eggs! We have a track record of one domestic rhinoceros beetle female laying 89 eggs. Hercules beetles have a track record of one female laying 128 eggs. Domestic rhinoceros beetle adults of 87mm have emerged in large numbers. Hercules beetles of 180mm have emerged as adults. We can ship in any quantity you desire. Since rhinoceros beetle larvae eat a lot, increasing the amount is recommended! * We recommend using a case with a filter to prevent the occasional entry of small flies. In addition, we also offer premium fermented mats, calorie mats exclusively for Japanese giant stag beetles, mushroom substrate stag beetle mats, coniferous tree mats that are ideal for adult management, and perches, high-grade pro-jellies, mycelial bottles, and mycelial blocks that can be used for adult rearing and display, so please take a look at my other listings. We also provide product and breeding support after purchase. We can also combine shipping if you send us a message. Separate shipping charges apply for Okinawa and remote islands.