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This 30" gravel tube is an alternate replacement for the 10" unit included with any Python No Spill Clean and Fill Aquarium Maintenance Systems
Both of these sources add to either nitrogen or phosphorus as well as potassium
powerful filter that ensures clean and consistent water quality
Trips to the veterinarian
Includes straight & angled applicator tips
SR Aquaristik Magnesium Supplement - 1kg - Magnesium Chloride Hexahydrate Under Gravel Filter This 30" gravel tube isIdeal for Saltwater Reef Aquariums Dissolves completely and easily in purified water Lab tested and pharmaceutical grade Phosphate and Ammonia free Recommended Dosage: 1000 ml or 880 grams makes 1 gallon of high quality supplement Instructions for use: Add 1000 ml of the Magnesium Chloride Hexahydrate into a clean dry 1 gallon container. Fill the container about full with RO DI or filtered water; shake vigorously for about 2 minutes. Fill the
