Reason for discount! Set of 3 King Oyster Mushroom spawn blocks - For stag beetle egg-laying and nutrition enhancement for rhinoceros beetle larvae!

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Limited Sale!!

This is a set of 3 used mushroom substrate blocks for Hiratake beetles.

Approximately 3000cc.

Additional blocks are available for any quantity!

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

As you can see in the image, the mycelium is firmly established inside.

Simply bury the blocks in the 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 get a large number of larvae!

Anteaters are laying a lot of eggs!

It also enhances the nutrition for rhinoceros beetle larvae.

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

They are also excellent as food for the larvae of stag beetles that prefer mushroom substrate, such as giant stag beetles, Hiratake, rainbow stag beetles, and giraffe stag beetles!

They are also suitable for creating your own original fermented substrate by breaking them apart.

*The image is of one of the items from our stock.
Please only purchase if you understand that some may be slightly broken or have different shapes.

These are used substrate blocks, not for making mushroom jars.

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

We also have other items for sale, such as fermented substrate that helps larvae grow larger, 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.