Seachem - Meridian Sand

The Seachem Meridian Sand is 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 and its grain size (a fairly uniform 0.25 - 0.50 mm) is ideally suited to reef inhabitants and it's chemical composition will assist in stabilizing calcium and alkalinity while preventing large pH declines.

• Natural oolitic aragonite for all types of marine, reef, and tropical aquaria
• Assists in stabilizing calcium and alkalinity
• Helps prevent large pH declines