i just set up a marine tank about a month ago and the coral and the stuff inside the tank is beginning to get brown spots, the glass is fine tho. anyone know what it is and how i can fix it?
most new marine tanks will go through an algae bloom and then balance out. with knowing what you tank setup is like, i would say its just slime algae due to high phosphates. do multiple water changes in small amounts to try and remove it.
