Pay in 4 interest-free payments of $3.50 Learn more
Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
When your current foams become worn out
making them particularly suitable for reef and marine aquariums
but a fourth coat may be necessary for particularly porous or rough surfaces
when adding tap water to your pond
Crafted for those who appreciate a realistic underwater landscape
Seachem Reef Advantage Magnesium 600g - 633 cab-only When your current foams becomeReef Advantage Magnesium is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the ionic ratios found in natural sea water. Why it's different: Reef Advantage Magnesium contains no ammonia. This is a common contaminant in every liquid magnesium supplement on the market. Severely depleted levels of magnesium (below 800 mg L) can cause depressed pH