Salifert Magnesium Test Kit Stuffing-Free This brush also doubles as

This brush also doubles as a toy and is great for tossing and chewing on and even great for teething puppies and kittens

Professional 3 600

Works with Fluval canister filter models: 105

Red signifies active heating and blue indicates standby mode

1 gallon of Sludge-Away treats a 500 gallon pond for 5 weeks

Salifert Magnesium Test Kit Stuffing-Free This brush also doubles asThe Salifert Magnesium Test Kit measures the magnesium content in saltwater aquariums. In nature, magnesium is present in rather high concentrations such as 1300 1400 mg L, and contributes heavily to photosynthesis, a process that sharply determines the growth and health of aquatic plants, algae and corals. Magnesium plays an important role in the aquarium environment. It controls and maintains the optimal balance of calcium concentration and