Hi there.... new to the reef thing..been watching a lot of BRS YouTube videos and got a tank from my old aunt that they ran as a marine tank ages ago. Would like to know if the rock that was with the tank is any good. Can’t seem to find out what tipe of rock it is and if it would work for a coral setup. They were in a tank with just plain Tropical water and a uv filter and pumps to filter the water. Do I need to soak them for 4 month as advised and will they work. Do have a lot of them so don’t want to spend money if I don’t need to! Thanks in advance..





