Possibly Cyano? Phosphates are zero?

[PSU_Reefer]

See the attached photos. Trying to figure out what this is. My first thought was cyano as i'm probably overfeeding. I checked my phosphates and expected them to be higher but got flat 0 with my hanna checker. Any ideas?

 

[moz71]

Hmm hard to tell from pictures looks more brown. Could be beginning of Dino’s. But the zero phosphate you can almost guarantee one of those two things popping up. Need to get a reading of phosphate

 

[stovenut]

Based on the appearance of your rock it looks like a pretty new tank. It's gotta go through some stages as everything stabilizes. I wouldn't worry about it. If your phosphates are 0.0 then you're not overfeeding. Perhaps you are over-carbon dosing. Low phosphates is usually better than 0.0 phosphates.

 

[moz71]

Based on the appearance of your rock it looks like a pretty new tank. It's gotta go through some stages as everything stabilizes. I wouldn't worry about it. If your phosphates are 0.0 then you're not overfeeding. Perhaps you are over-carbon dosing. Low phosphates is usually better than 0.0 phosphates.

Good point on new tank this could just be diatoms that will go away on own and agree feed more.

 

[PSU_Reefer]

Based on the appearance of your rock it looks like a pretty new tank. It's gotta go through some stages as everything stabilizes. I wouldn't worry about it. If your phosphates are 0.0 then you're not overfeeding. Perhaps you are over-carbon dosing. Low phosphates is usually better than 0.0 phosphates.

This could be it. I did just introduce carbon into the tank a few weeks ago. maybe pull that out and see if things stabalize?