Hi, i am in the process of planning my set up for my new 125g reef tank and have many questions on equipment etc.Firstly i would like to know if the playsand available at local diy shops would be suitable for my dsb.We do not have Home depots here in U.K.The playsand does not have a list of ingredients on the packaging so i do not know if it will have anything harmful in it.Does anyone know of any reason why normal playsand would not be suitable?