Bacto-Surge® Biological Action Filters are air-driven sponge filters (air pump not included) which offer superior mechanical and biological filtration of your aquarium water.

Removes nitrates, nitrites, ammonia, and organics
High porosity biological media
Pore size well suited for anaerobic bacteria
No danger of hydrogen sulfide production as with sulfur-based media

Silent operation, high quality, and dependability

Silent operation, high quality, and dependability.

Food for nearly all herbivorous and omnivorous marine fishes, herbivorous marine invertebrates, and freshwater species.

Comprehensive carbohydrate, vitamin, amino acid, and polyunsaturated fatty acid supplement for corals
Ascorbic acid in a base of chlorella
Makes a trace element supplement unnecessary

A complete, reef-safe, controllable solution for nitrate & phosphate reduction

High accuracy colorimetric comparator tests for the exceptionally high accuracy measurement of Nitrate and Phosphate (suitable for all reef systems)

Marine buffer supplement with trace elements that promote
the development of Coralline algae

Concentrated blend of marine zooplankton
Size ranges from 12.5-500 μm
Enhanced to increase the bioavailability of important nutrients

Eliminates Most Parasites that Target Coral
Simple One Dip Application
Promotes Healthy Tissue and Colors
Iodine-Free Formula
Safe for All Types of Coral

The Dymax Pro-Cube is a revolutionary biological filter media that rapidly eliminates ammonia, nitrate, and nitrite, resulting in consistent water chemistry for aquatic life.