I'd like some of you reef experts to take a look at this pic:
About 6 weeks ago I began the conversion of a 20 gal all fish tank to a reef. Moved slowly, with water changes following all the prescribed requirement for new reef tanks.
As you can see, I'm experiencing the expected brown diatom takeover, and have been waiting patiently for the tank to move to the next phase. The yellow circled areas are the brown diatoms, but I'm concerned about the red circled areas. Sorry for the blurred image, but it's the best I could do.
What's the red/maroon stuff? It scrapes off easily, so it's not coraline. If you tell me that it's the start of red slime cyano, I'm going to find out who you are and I'm coming after you!!!
There's no reason for any red sline stuff! Nitrates are zero, phospahates are very low, not quite zero, and all other checks are well within range. 95 watts of T5 HO lights, 8 hours/day.