Red Sea Magnesium Pro - Reagent Refill Kit Air Stones & Wands The tube is made of

The tube is made of Borosilicate glass for superior heat and shock resistance and surrounds a high quality ceramic heat radiator that provides even and the best heat distribution from the heating elements

equivalent to over 40L (10 gallons) of typical plastic ball media

Soft and all natural

Its formulation contains all natural source ingredients with a base of sea vegetation

this mix contains a superior blend of specialty seeds

Red Sea Magnesium Pro - Reagent Refill Kit Air Stones & Wands The tube is made ofRed Sea's Magnesium Pro test kit is an advanced titration test, measuring the level of magnesium in your reef aquarium to an exceptionally high accuracy of 20 ppm. Royal Item Number: ARE21416