Seachem Flourite Sand Color:Flourite Black Sand If you are looking at

If you are looking at a constant supply

but oxygen exchange and light penetration too

pH Alert® lasts up to 4 times as long as competing products

Matching Aquarium Stand for Superfish Start 70 as well as other fish tanks (just check for the correct dimensions)

Seachem Flourite Sand Color:Flourite Black Sand If you are looking atFlourite 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.