Oyster mushroom mycelium block (spent substrate) - Excellent for stag beetle egg-laying! Great for supplementing nutrition for rhinoceros beetle larvae!

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Limited Sale!!

This is a listing for a set of 1 block of used shiitake mushroom substrate.

Approximately 3000cc.

Additional blocks are available for any quantity!

This is a used substrate block made from 100% raw oak sawdust, offering excellent nutritional value.

As shown in the image, the mycelium is firmly embedded within.

Simply bury the block in the substrate, and stag beetles will lay eggs!

It's easy to break apart, making it easier to extract larvae than using logs, and you can obtain a larger number of larvae!

Ante (likely referring to *Allotopus moellendorffi*) are laying eggs prolifically!

It also enhances the nutrition for rhinoceros beetle larvae.

When raising rhinoceros beetle larvae, you'll notice a significant increase in size simply by burying this in the substrate.

It's also excellent as food for the larvae of stag beetles that prefer fungal substrate, such as giant stag beetles (*Dorcus hopei binodulosus*), Japanese stag beetles (*Dorcus titanus*), rainbow stag beetles (*Phasmotaenia iridis*), and giraffe stag beetles (*Prosopocoilus giraffa*)!

It's also suitable for creating your own original fermented substrate by breaking it apart.

※The image shows one item from our stock.
Please only purchase if you understand that some may be slightly broken or have different shapes.

This is a limited sale, so the listing will end once sold out.

We also have other items for sale, including fermented substrate for growing large larvae, stag beetle substrate, coniferous substrate ideal for adult beetle management, perches for adult beetle breeding and display, and high-grade pro jelly. Please check out my other listings.