20 lbs. Black. Natural substrate is perfect for such a lot freshwater and saltwater aquaria. Stays cleaner than gravel. No dyes, paints or coatings.
And not using a added dyes, paints or chemical coatings in contrast to such a lot synthetic aquarium rocks
Enhances the colourful colors of aquarium plants
Natural taking a look fish tank rock substrate that may be long-lasting
Comprises very important reside bacteria