Add drama and contrast to your aquarium or terrarium with Black Venom Gravel. These soft river stones are a dark grey when dry and pitch black when wet, creating a high-impact, high-contrast scape. The gravel is perfect for creating a stream biotope or for use as a complementary substrate with black stones or boulders. Small Gravel is approx. 0.3" to 0.8" and Large is approx. 0.8" to 1.6".
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