It can also be used stacked upon one another to build an aquascape. Black Lava Rock is a classic aquascaping stone that's often used in all types of aquarium setups such as planted tanks, freshwater, and brackish. Add life to your overall setup by bringing back nature to your tank’s occupants. Due to the nature of naural lava rocks, they … Because of its highly porous nature, easy aquatic plants like moss, Anubias, Ferns, and Bucephalandra will readily attach themselves to these rocks. Black Lava Rock Natural Aquarium Substrate (Buy 2 Get 1 Free) VentureAquatics. In Aquarium stones add accent and interest. Because of its highly porous nature, easy aquatic plants like moss, Anubias, Ferns, and Bucephalandra will readily attach themselves to these rocks. American Fireglass LAVA-M-10 American Fire Glass Black Lava Rock Transform your tank into a natural lava rock aquarium through these premium stones from American Fireglass. Use one large rock or several stones arranged in groups. Lava rock is very different to other rocks we sell. Lava rock is popular in planted aquariums due to it's rough texture - ideal for planting mosses on. Lava rocks substrate would be great for beneficial bacteria, but the rocks are better suited for use as biological filter material inside your aquarium filter or as part of your hardscape. Lava rock won't raise your pH, it is fairly stable stuff. Freshwater aquarium sand can be pH neutral, while specialty blends are made for fish like African Cichlids that prefer hard water with a higher mineral content. Toggle menu We also put the lava rock in a stream of water, being pumped through our aquariums, so the lava rocks already are populated by denitrifying bacteria, which means they'll begin to work in at most 48-hours, after being put in another aquarium. I've read account where painted coral was sold as lava rock, that might be something to look into if you are sure it is the rock, but real lava rock … I've read a lot of people advising against it … I used black lava rocks I picked up from a local landscape supply company for $0.17 per pound. Use lava rocks to give small fish places to hide or just to give yur aquarium some atmoshpere. From shop VentureAquatics. Another common use of lava rocks in aquariums is as a substrate, and YES, its perfectly ok, so no need to worry. This listing is for black lava rock. The lava we sell is about the right amount for many aquariums and is tested to be aquarium safe. A disclaimer here. Black Lava Rock is a classic aquascaping stone thats often used in all types of aquarium setups such as planted tanks, freshwater, and brackish. I've never seen anyone else use this method of either colored grout or black lava rock reef. aquarium lava rock for aquascaping. 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