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For nutritional enhancement of rhinoceros beetle larvae! Shiitake mushroom substrate block [10 pieces] Just bury it in the substrate!

★★★★★ 4.5 rating · 27 reviews · 267+ sold
$32.99 $42.8870021820068 30% OFF
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Product Details

# Click here for our stag beetle and rhinoceros beetle product list on Mercari!

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Limited Sale!!

This is a listing for a spent mushroom substrate block made from 100% Quercus (oak) material.

This is a super-sized 3500cc block.

10 blocks for ¥4999 (free shipping)

Additional blocks are available.

We will ship the quantity you desire.

Please inquire via the question section.

This is a nutrient-rich spent mushroom substrate block made from 100% Quercus (oak) raw sawdust, which stag beetles and rhinoceros beetles love the most.

As shown in the image, the mycelium has spread throughout the block.

It is excellent as food for stag beetle larvae, for egg-laying, and for nutritional supplementation for rhinoceros beetle larvae.

When raising rhinoceros beetle larvae, you will notice a significant size increase simply by burying this block in fermented substrate.

When buried in substrate as a block, rhinoceros beetle larvae will burrow in and eat enthusiastically.

It also serves as food for larvae of stag beetles such as Giant Stag Beetles, Stag Beetles, Rainbow Stag Beetles, and Giraffa Stag Beetles that prefer mushroom substrate.

When used instead of an egg-laying log, females will burrow in and lay eggs.

It is easier to extract larvae than from logs, and you can obtain a larger number of larvae!

It is also suitable as a raw material for creating your own original fermented substrate by loosening it.

※The image is of one item from our stock.

Please only purchase if you understand that some blocks may be slightly misshapen or broken.

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 for adult beetle breeding and display, and high-grade professional jelly. Please check our other listings.

# Click here for our stag beetle and rhinoceros beetle product list on Mercari!

Category
Starter & Rearing Sets
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 (27)

4.5
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User5720166
★★★★★
2026-11-07

Il prezzo è ragionevole per la qualità offerta. Buon rapporto qualità-prezzo.