Marinepure Spheres 1.9l Box

Description

MarinePure Spheres 1.9l Box — Ceramic biomedia spheres for nano sumps and small filter chambers

A nano sump or a hang-on-back chamber rarely has room for a plate or a block, but a scoop of small ceramic spheres fills an awkward space without wasted volume. MarinePure Spheres 1.9l Box (SKU: 100892) is CerMedia’s smallest retail pack of 1.5 in ceramic biomedia spheres, sold as a 1.9 L (2-quart) box. Each sphere is built from the same inert, open-pore ceramic used across the MarinePure range, carrying more than 80% open porosity and about 240 sq ft of surface area on its own. CerMedia also packs the identical sphere in a 3.8 L box and in larger bulk buckets and drums for bigger systems.

Density works out to roughly 150,000 sq ft of accessible surface area per cubic foot (about 510 m² per litre), so a small box of loose spheres still carries a meaningful amount of bacterial habitat for a nano or small aquarium. Bulk Reef Supply, a US retailer, estimates the larger 3.8 L box holds roughly 75 to 100 spheres, putting the 1.9 L box at roughly half that count. The spheres need to stay fully submerged, do not float, and work best in a sump, refugium, wet/dry chamber, canister basket or hang-on-back tray rather than loose on the substrate. They tolerate both freshwater and marine chemistry, can be rinsed and reused, and hold up to moderate flow, though a concentrated high-flow jet aimed directly at a loose pile can chip the ceramic over time.

Usage & Application

When to Use

• Nano and small tanks: A box-sized dose of media for setups too small to justify a plate.
• Hang-on-back and canister filters: Loose spheres fill a media basket or tray that a flat plate will not fit.
• Topping up an existing filter: Extra surface area added alongside sponge or carbon media.
• Quarantine and holding tanks: A small, portable dose of established biomedia to seed a new filter.

Placement & Usage Guide

• Rinse before use: Clear ceramic dust from the spheres under tap water before adding them.
• Keep them submerged: Place in a sump, refugium or filter chamber where flow passes through, not over, the pile.
• Bag loose spheres: A small media bag keeps them together and easy to lift out for cleaning.
• Favour moderate flow: Avoid aiming a concentrated high-pressure jet directly at the spheres.

Product Specifications & Highlights

Key Features

• 1.9 L (2-quart) box: CerMedia’s smallest retail pack of the Spheres line.
• 1.5 in ceramic spheres: About 240 sq ft of surface area each.
• Over 80% open porosity: Water moves through the body of each sphere, not just across it.
• Fits small chambers: Loose shape suits nano sumps, HOB trays and canister baskets.
• Reusable and cleanable: Rinses out and can be sterilised between uses.

Product Details

• Brand: MarinePure (CerMedia, USA)
• SKU: 100892
• Barcode (GTIN/UPC): 857246002004
• Product Type: Filter Media > Ceramic Biomedia Spheres
• Material: Inert ceramic, open-pore 1.5 in spheres, >80% open porosity
• Net Volume: 1.9 L (2-quart box)
• Surface Area: About 240 sq ft per sphere (density approx. 150,000 sq ft per cu ft, 510 m² per L)
• Placement: Sumps, refugiums, wet/dry, canister and hang-on-back filter chambers
• Other Sizes: MarinePure Spheres 3.8l Box (SKU 100893)
• Target Environment: Freshwater and marine aquariums