Fluval Bio-Stratum Aquarium Substrate

Marsoni

M251S

$12.45

Get it in 3 business days with 1 day shipping. Friday, May 29

Fluval Bio-Stratum Aquarium SubstrateCollected from the mineral rich foothills of the famous Mont Aso Volcano in Japan and infused with beneficial nitrifying bacteria, Bio Stratum is specifically formulated to provide immediate biological activity and maintain ideal conditions for a thriving planted aquarium. Characterized by its non compacting 1 mm powder granules, Bio Stratum allows plants with even the finest and most delicate roots to easily spread throughout the porous substrate

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Exactly what I wanted. Exact quality thickness and sturdiness. Only small downside is they're coated in a wax like substance and stick together so you have to pry them apart and if you microwave something, it tends to meld together and also stick into the bowl. But I still love them especially the price.

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Reviewed in the United States on March 30, 2026

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Mike

Lexington, US

★★★★★ 5

Great bowl , great. For water boiling 100%

Size: 50 Count

Finally a microwavable bowl, that doesn't rot when boiling water !!! Yay. Great for oatmeal and soups

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Reviewed in the United States on May 12, 2026

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