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By adding the Battery Backup**
but it is unique in the market as an ATO device with three layers of redundant monitoring and water-level control
The COR is a variable speed
Waste-Away works to remove aquarium gunk
INSTANT OCEAN REEF CRYSTALS REEF SALT MIX Air Water & Ice By adding the Battery Backup**Reef Crystals Reef Salt Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water. Specially formulated for use in reef aquariums contains essential ocean reef elements in greater concentrations than natural sea water Contains extra calcium to ensure stony coral and coralline algae growth, extra trace