A microbial mat is provided, including a contact layer; a core layer; a matrix of cellulose fibers coated with a liquid nutrient mix; and a carrying sheet; wherein the core layer comprises the matrix of cellulose fibers coated with a liquid nutrient mix, attached to the carrying sheet and coated with a dry nutrient mix; wherein the liquid nutrient mix and dry nutrient mix are composed of ingredients from the group consisting of Sodium Citrate, Ammonium Sulphate, Monosodium phosphate, Dipotassium Phosphate, Magnesium Sulphate, Eprom Salt, and Ferrous Sulphate; and a top layer, wherein the top layer is attached to the entire surface of the core layer.
