Seachem Flourite Dark Size:15.4 lbs Unlike aragonite mixed with a

Unlike aragonite mixed with a Portland cement

To prevent clogging there is a floating internal strainer that pre-filters the water prior to the water pump

The unique production process promotes a uniform particle size minimizing stratification of the salts

Check calcium levels regularly

Will not Affect Dissolved Oxygen Levels in the Water

Seachem Flourite Dark Size:15.4 lbs Unlike aragonite mixed with aFlourite Dark is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Dark is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Dark is not chemically coated or treated and will not alter the pH of