Seachem Meridian Oolitic Aragonite Ocean Free Spare Parts Provides large surface area for

Provides large surface area for adsorption of impurities

chemical and biological

pH will not “rebound” to the original level

Flexible spray nozzles can be pointed in any direction

Adding tap water or making water changes can cause a pH shift

Seachem Meridian Oolitic Aragonite Ocean Free Spare Parts Provides large surface area forMeridianis an all natural oolitic (spherical or egg shaped) aragonite substrate for all reef and marine aquaria. Meridian is the premium aragonite substrate for the reef aquaria. It's grain size (a fairly uniform . 25 . 50 mm) is ideally suited to reef inhabitants and it's chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines. Unlike competing "wet" products marketed under the guise of being "live",