Natural Slate Gravel | Aquarium Substrate - 1/4 to 1/2 inch
Small World Slate & Stone
Our substrate is 100% real slate stone that is sourced, sorted, washed and packaged in the USA by our family owned business. Each box is a mix of gravel from 1/4" to 1/2" (some stones may be slightly above or below this range). Absolutely no coatings on this or any of our stones.
An excellent gravel for Aquascaping aquariums or use it as a topper for soil in a planted tank. The grey/blue color makes wood, plants and other inhabitants and decorations pop. Pairs perfectly with our Natural Slate Stones that come in sizes from 1 inch up to 10 inches for a cohesive, natural scene. Perfect scale for miniature models and scenes as well as a topper for succulents and other potted plants.
This substrate is a beautiful, deep grey matte color, with a hint of blue. Because this is a natural stone, some white quartz or brown stones may be mixed in that add to the natural look. Some of the quartz pieces may have a small amount of calcium. We have not found this to alter water parameters.
This substrate will arrive quite dusty due to shipping and handling. This is normal for this stone. Be sure to wash this gravel repeatedly, in water ONLY, until water runs clear (or mostly clear).Place cleaned gravel in your empty tank (no water), and decorate before adding water. To add water, place a clean bowl or container in the tank and pour the water into the bowl and allow to overflow the container slowly so as not to disturb the substrate, in order to keep cloudiness to a minimum. As with any new tank set up, the water will be cloudy at first (even after rinsing). It should clear up, with proper filtration, in a few days.
We offer three different sizes of aquarium gravel to choose from; 1/4" to 1/2" (this listing) , 1/8" to 1/4" and Less than 1/8" (coarse sand). We like to mix these for an even more realistic scene! Check them out! Perfect for Betta bowls to 100+ gallon aquariums!