Stones should be cleaned prior to use. Do NOT boil any stone hardscape.


Dark Blue Slate is a flat stone that can be used for a variety of aquascaping styles, terrariums, vivariums, paludariums and more. Dark Blue Slate sports a deep color palette that becomes substantially darker when exposed to water. It is primarily a blue-ish charcoal color that includes random striations throughout. Its flatter shape makes it ideal for stacking, adding stability or creating a sturdy base underneath aquarium wood such as Malaysian Driftwood, Pacific Wood, Spider Wood and more. They can be broken down into smaller pieces and wrapped with aquarium mosses or used in other planted projects with ease.  How many pounds do I need?
We advise 2 x Tank volume in gallons = Total amount of pounds required

TIP: Soaking stones in muriatic acid will provide a darker shade of color. Please do thorough research to ensure safety measures are understood and followed.