🏀 Free shipping on orders over $50 · 30-day free returns · 100% authentic

訳あり! King Oyster Mushroom Spawn Block [Set of 4] For Stag Beetle Egg Laying & Kabuto Larva Nutritional Enhancement

★★★★★ 4.5 rating · 40 reviews · 397+ sold
$21.11 $27.443000793457 30% OFF
Flash Sale ends in
00d 00h 00m 00s
100% Authentic · Money-back guarantee
Free Express Shipping · 2-5 day delivery
30-Day Free Returns
6-Month Quality Warranty

Product Details

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

Thank you for viewing.

Limited Sale!!

This is a listing for a set of 4 used mushroom substrate blocks (Hiratake).

Approximately 3000cc.

Additional blocks can be added as needed!

These are used substrate blocks made from 100% Quercus acutissima raw sawdust, offering excellent nutritional value.

As you can see in the images, 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 it easier to extract larvae compared to wood logs, and you can obtain a large number of larvae!

Ante (likely referring to *Dorcus antaeus*) are breeding 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 these in the substrate.

They are also excellent as food for the larvae of fungivorous stag beetles such as *Dorcus hopei binodulosus*, *Dorcus planatus*, rainbow stag beetles (*Phalacrognathus muelleri*), and giraffe stag beetles (*Prosopocoilus giraffa*)!

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

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

These are used substrate blocks and are not intended for making mushroom spawn jars.

This is a limited sale, and 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 management, perches suitable for adult beetle breeding and display, and high-grade professional jelly. Please check out 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 (40)

4.5
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User5747966
★★★★★
2026-11-06

Het artikel werkt precies zoals beschreven.