Seachem Flourite Sand Color:Flourite Black Sand compact all-in-one aquarium designed for

compact all-in-one aquarium designed for easy setup and low maintenance — ideal for beginners and experienced hobbyists alike

Onyx Sand is most effective when used alone as an integral substrate bed

It includes AquaEl unique three-stage Smart Day & Night LED lighting system

but oxygen exchange and light penetration too

If you are looking at a constant supply

Seachem Flourite Sand Color:Flourite Black Sand compact all-in-one aquarium designed forFlourite 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 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 is not chemically coated or treated and will not alter the pH of the water.