Had a couple spots like these pop up so I blew off the "fuzzy" part and it subsided for a week or so and this morning, I have these new spots. What is this going on? All parameters are spot on where I want them. I did have a calcium reactor clog up with no pH controller, but I didnt let that water get into the tank. No new montis added in a long time. Added a few acros but didnt dip one so I could save the acro crab in it.



