5 lbs Red Lava Rocks for Plants,1/4 Inch Crush Volcanic Rock
【Natural Volcanic Rock】Volcanic lava stone, also known as pumice, is a naturally occurring lava stone with dense air pockets. 【Lava Rock Aquarium】Volcanic stone generally has the effect of softening the alkaline pH, which is generally acidic.
FANTIAN 2 lbs Small Black Lava Rocks for Plants,1/4 Inch
【5-8 mm Volcanic Rock】Volcanic lava stone, also known as pumice, is a naturally occurring lava stone with dense air pockets. 【Lava Rock Aquarium】Volcanic stone generally has the effect of softening the alkaline pH, which is generally acidic.
