hi everyone,my sand is looking kinda greenish im not sure if its algae growing on sand or if its something else but im pretty sure its algae 
but i dont kno how this could have happened i jus cleaned my tank and the water conditions r fine im not sure if im letting the light run to long and causing algae to grow on the sand but theres no algae on the rocks or anything jus the sand or if its cuz the sand is not being moved with something...plz help 
but i dont kno how this could have happened i jus cleaned my tank and the water conditions r fine im not sure if im letting the light run to long and causing algae to grow on the sand but theres no algae on the rocks or anything jus the sand or if its cuz the sand is not being moved with something...plz help 
