Marinepure Spheres 18.9l Bucket

Description

MarinePure Spheres 18.9l Bucket — Bulk ceramic biomedia for large sumps and multi-tank fish rooms

Buying biomedia a box at a time stops making sense once a system runs into the thousands of litres, which is why CerMedia also packages its ceramic spheres in bulk bucket quantities. MarinePure Spheres 18.9l Bucket (SKU: 102688) is an 18.9 L bucket of the same 1.5 in ceramic biomedia spheres sold in CerMedia’s smaller retail boxes, holding roughly five times the volume of the 3.8 L gallon box. Each sphere keeps the same inert, open-pore ceramic structure used across the range, with more than 80% open porosity and about 240 sq ft of surface area individually. The bucket format suits a large reef sump, a frag system, or a fish room running several tanks off one biological filter.

Density across the MarinePure range works out to roughly 150,000 sq ft of accessible surface area per cubic foot (about 510 m² per litre), so a bucket this size represents a large amount of bacterial habitat delivered in one container that is still easy to pour or bag. The spheres must stay submerged and do not float, and CerMedia’s recommended placements are sumps, refugiums, wet/dry towers and large canister chambers rather than loose in a display. They tolerate freshwater, marine and reef chemistry equally, can be rinsed and reused across cycles, and hold up to moderate flow, though a jet concentrated directly on a tight pile can chip individual spheres over time. CerMedia also sells the identical sphere in smaller boxes and in larger half-drum and drum quantities for commercial-scale systems.

Usage & Application

When to Use

• Large reef and display sumps: A bucket-sized dose for systems in the thousands of litres.
• Frag farms and holding systems: Bulk media for high-bioload coral or fish holding setups.
• Multi-tank fish rooms: One bucket split across several biological filters on a shared system.
• Replacing a drum-scale media bed: A mid-size top-up without buying a full drum.

Placement & Usage Guide

• Rinse the whole bucket first: Flush ceramic dust out before the spheres go into the filter.
• Split into bags: Divide the bucket across several media bags for even flow distribution and easy removal.
• Keep the pile submerged: Place in a sump, refugium or large canister chamber, never left dry.
• Rinse between cycles: Periodically flush trapped detritus to keep flow moving through the bed.

Product Specifications & Highlights

Key Features

• 18.9 L bucket: About five times the volume of CerMedia’s 3.8 L gallon box.
• 1.5 in ceramic spheres: About 240 sq ft of surface area each.
• Over 80% open porosity: Water passes through the body of every sphere.
• Bulk container: Pours or bags easily for large sumps and fish rooms.
• Reusable and cleanable: Rinses out and can be sterilised between uses.

Product Details

• Brand: MarinePure (CerMedia, USA)
• SKU: 102688
• Barcode (GTIN/UPC): 857246002066
• Product Type: Filter Media > Ceramic Biomedia Spheres
• Material: Inert ceramic, open-pore 1.5 in spheres, >80% open porosity
• Net Volume: 18.9 L bulk bucket
• 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 towers and large canister chambers
• Target Environment: Freshwater, marine and reef aquariums, and multi-tank fish rooms