SMS Guano Why use GUANO instead of SSP or MAP?Independent Research Data See our new product offering: SMS Coated Guano. We now offer our SMS Guano Fertiliser with the granules coated with Ferticoat. READ MORE Description SMS Guano is comprised of biological combination of seabird droppings, decomposed seabirds, coral, kelp, fish and other sea life. … Continue reading SMS Guano