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Opti-Clear glass
Gravity-fed 125L / 33gal ATO reservoir
It's never been easier to get the massive macroalgae growth you're looking for
High performance filter medium especially for smaller aquariums
Dissolves quickly & easy to dose
Biofilter Spheres 3.8L Box - MarinePure aquarium systems Opti-Clear glassDesigned for Ammonia & Nitrite Removal under high flow. Deep pore structure will allow development of low oxygen zones, which will help with control of nitrates. One MarinePure Sphere has the same surface area as 1,350 plastic 1. 5 bio balls. Can be used in canister filters, sumps & wet dry filters. 1 Sphere does approximately 30Liters of Aquarium Water
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