So, this algae? popped up about 3 days ago, and has slowly been spreading on the substrate. I don't know if it is fungal, algae, or anything. Please help. My Nitrates are high because I just had 3-4 snails die, and possibly a goby, we haven't seen him for a week and a half. Phosphates are also high, about .14-.16. Its hard to see but it is kinda gray.
