Coarse 3.0+ mm

You can now bring the world's most exotic reefs into your home with CaribSea's Arag-Alive substrates. Eight environmentally accurate ecoscapes, developed through CaribSea's cooperation with public aquariums and zoological parks where authenticity is a...

CORALine - Don't settle for an ordinary gravel. Natural dramatic colors and textures combined with pH support characterize our Coraline and Seaflor products. These are coarser materials suitable for most undergravel filtration and fish systems or as an...

Our sand-sized Super Naturals are now Super Natural “Aquascapes”. Each bag contains a premeasured dose of beneficial bacteria to help start the cycling process. There are 8 colors to choose from, including new Midnight River. All...