Exo Terra SUB STRATUM Bioactive Volcanic Substrate Toys sodium selenite]

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Peat Granules provide an all-natural way to soften aquarium water and achieve the pH levels required for breeding and rearing certain tropical fish

MAGNESIUM OXIDE

gerbils and mice

while Bio-Foam provides ideal surface for growth of beneficial nitrifying bacteria

Exo Terra SUB STRATUM Bioactive Volcanic Substrate Toys sodium selenite]The Exo Terra Sub Stratum is collected from the mineral rich foothills of the Aso Volcano in Japan. The natural volcanic soil, formed from andesitic and rhyolitic tephra, is very nutrient rich, ideal for lush plant growth in bioactive planted terrariums. The porous surface allows for excellent drainage and aeration, supporting strong root growth. The Sub Stratums friable, low density structure promotes a flourishing population of beneficial,