Giant Stag Beetle Special Super High Calorie Substrate [20L] 3x Nutrient Additive Blend! Also for Bifurcated Species

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Recommended for those who want to raise Great Horned Stag Beetle larvae on substrate!

Introducing our Super High Calorie Substrate for Great Horned Stag Beetles with excellent nutritional value.

20 Liters

2 bags of 10 liters each

Comes in resealable zipper bags for convenient storage.

We can accommodate additional bags upon request.
We will ship the quantity you desire.


This is a calorie-enhanced substrate made from 100% oak sawdust, which Great Horned Stag Beetles prefer most, finished with the highest quality Himalayan Oyster Mushroom mycelium.

It's a specially selected calorie substrate where regular Himalayan Oyster Mushroom substrate is further micronized for easier consumption, and fortified with 3 times the amount of nutritional additives such as trehalose, glucose, chitosan, royal jelly, high-activity gluten, arginine, calcium, minerals, enzymes, yeast, special amino acids, and symbiotic bacteria.


We do not use any discarded substrate. Instead, we crush new substrate made from fresh sawdust and carefully ferment it indoors.

This is our ultimate, meticulously crafted substrate, fermented three times with significant cost and time investment.

Other companies' fermented substrates use discarded substrate as raw material or ferment outdoors, leading to the proliferation of unwanted insects and fruit flies.

Our calorie substrate is carefully fermented indoors under controlled conditions using freshly made substrate, ensuring absolutely no contamination with unwanted insects.



We've received many repeat customers thanks to this substrate consistently producing large individuals.

Even with the same mycelium, substrate finished with Himalayan Oyster Mushroom mycelium is most preferred by stag beetles and results in larger individuals.

Himalayan Oyster Mushroom is expensive and difficult to obtain.

This substrate has been perfected through years of research for both domestic and foreign Great Horned Stag Beetles.

While ideal for Great Horned Stag Beetles, it is also readily consumed by Miyama Stag Beetles and Sawtooth Stag Beetles.

This substrate is also popular among breeders of Sumatran Stag Beetles and Rainbow Stag Beetles.

It is also recommended for Forked Stag Beetles!



(Naturally, it is also highly consumed by foreign and domestic rhinoceros beetles such as Hercules beetles.)

The key to raising large adult stag beetles is to feed the larvae plenty of high-quality food during their larval stage.

With high-quality substrate, stag beetle larvae will continue to eat voraciously.

It is versatile and economical, as it can be used for filling bottles, portioning into pudding cups, or as a laying substrate.

Separate shipping fees apply for Okinawa and remote islands.