| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
A natural oolitic (eggshaped) aragonite substrate designed for marine, reef, and tropical aquariums. Seachem Meridian features a uniform grain size that supports reef inhabitants while helping stabilize calcium and alkalinity and reduce large pH swings in your aquarium. Its dry formulation means you pay for pure substrate without unnecessary water weight.
Natural oolitic aragonite substrate
Uniform .25.50mm grain size
Helps stabilize calcium and alkalinity
Assists in preventing large pH declines
Dry product with no water filler
Helps maintain stable aquarium water chemistry
Supports balanced calcium and alkalinity levels
Reduces the risk of sudden pH drops
Provides a reeffriendly substrate foundation
Rinse substrate thoroughly before use to remove dust.
Spread evenly across the aquarium bottom to desired depth.
Add water slowly to avoid disturbing the substrate bed.
Use mechanical filtration or filter floss to clear initial cloudiness as needed.
