Red Lava Gravel is a highly porous gravel suitable for freshwater aquarium use. It is inert and will not affect the water chemistry in your aquarium. The light weight granules and high porosity makes it versatile to use as both a substrate and filter media by providing plenty of surface area for beneficial bacteria and bio film to colonize. This is our preferred substrate for keeping Neocaridina shrimp such as Cherries.
*We recommend rinsing prior to use
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