For stag beetle egg-laying logs! King oyster mushroom mycelium [3 blocks] Simply bury in substrate for massive egg-laying!

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Limited Sale!!

We are offering 3 blocks of spent mushroom substrate for *Dorcus hopei binodulosus* (Giant Stag Beetle).

Please see the 10 photos above.

These are quite large blocks.

You can add as many as you like!

These spent substrate blocks are made from 100% raw oak sawdust and are packed with nutrients.

As you can see in the photos, the mycelium is firmly established within the blocks.

Simply bury the blocks as they are in your substrate, and your stag beetles will lay eggs!

They are easy to break apart, making it easier to extract larvae than with logs, and you can obtain a large number of larvae!

*Dorcus antaeus* are laying eggs in abundance!

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 these blocks in the substrate.

They are also excellent as food for larvae of stag beetles that prefer mushroom substrate, such as *Dorcus hopei binodulosus*, *Prosopocoilus inclinatus*, *Nigidius* species, *Phalacrognathus muelleri*, and *Prosopocoilus giraffa*!

They are also suitable for breaking apart to create your own original fermented substrate.

*Please note: The photos show one of the blocks from our inventory. There may be some blocks that are slightly broken or have different shapes. Please only purchase if you understand this.*

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

We also have other items for sale, including fermented substrate that promotes larval growth, stag beetle substrate, coniferous substrate ideal for adult beetle care, perches for adult beetle breeding and display, and high-grade professional jelly. Please check out our other listings!