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For nutritional enhancement of rhinoceros beetle larvae! King Oyster Mushroom Substrate [3 Blocks] Also for stag beetle egg-laying!

★★★★★ 4.8 rating · 45 reviews · 447+ sold
$16.49 $21.4369997024536 30% OFF
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Product Details

# Stag Beetle & Rhinoceros Beetle Product List on Mercari ← Click Here!

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Limited Sale!!

This is a listing for a set of 3 used substrate blocks for *Dorcus hopei binodulosus* (Giant Stag Beetle).

Please see the 19 photos above.

These are quite large blocks.

You can add as many as you like!

These used 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 the substrate, and stag beetles will lay eggs!

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

My *Prosopocoilus inclinatus* are laying eggs like crazy!

They also enhance 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 such as *Dorcus hopei binodulosus*, *Prosopocoilus inclinatus*, *Nipponogomphus viridis*, and *Prosopocoilus giraffa* that feed on mycelium!

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

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

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

I 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 pro jelly. Please check my other listings.

Category
Larvae Rearing & Substrate Bottles
Condition
New/unused
Shipping
Included in price (by seller)
From
Tokyo

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (45)

4.8
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User5749776
★★★★★
2026-11-06

Producto confiable y de buena terminación.