I recently set up my 20 gallon long and about a week ago I added my first coral and inverts. A Florida Ricordea and 2 hermits. I wanted to if is if this is cyano and if it is anything I should be worried about. If so, how should I go about getting rid of it. Some other info is that I didn’t run my light until about a week ago as well and for the duration of my cycle they were not on. There are also a few more little spots on the glass and some very tiny spots on the rocks.
Picture included below.

Picture included below.




