Beetle Breeding Flake Soil Substrate
Flake Soil is a nutrient-rich substrate made by fermenting hardwood sawdust. It’s widely used for beetles and other species that rely on decaying wood in their diet. The fermentation process breaks down the tough lignin found in wood, exposing the cellulose and other nutrients that many arthropods require for proper growth and development.
This is my original recipe that I created over 10 years ago and shared with hobbyists, for which I also released an official recipe online back in 2020. Since then, my recipe been adopted by keepers around the world and used as a trusted base for their own flake soil mixes.
"Flake Soil" is the term for beetle substrate that has been used by professional breeders in Japan to rear large adults for the past 20 years. This high quality substrate is suitable for feeding saproxylic larvae, and can also be used as breeding substrate for egg laying of rhino/stag/flower beetles. Flake Soil can also be used to feed other invertebrates that feed on decaying material, such as isopods and millipedes.
My Flake Soil is made from pure, sterilised oak sawdust that has been artificially fermented under controlled conditions. It is enriched with carefully selected additives at balanced levels to promote healthy microbial growth and optimal nutrition, including, wheat bran, soy protein, trehalose, chitosan, and larval gut bacteria. The substrate is fermented at high temperatures for about one month with regular mechanical aeration and agitation, ensureing uniform decomposition and microbial activity.
Unlike many commercially available alternatives that have been developed by other breeders based on my recipe, this Flake Soil contains only oak sawdust as its base material. It does NOT contain toxic coco-peat/coir/husk/chips, nor pine products. These materials don’t provide nutritional value for beetle larvae and interferes with the beneficial microbes they rely on due to their high mineral and salt content.
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