help please

[jfuka78]

Will gfo cause this? Just recently I noticed this on my sunset, the only thing I can think of was I changed out my gfo and doubled my normal amount do to high phosphate, Hanna said.5 two days later bacinto .04. I hope this is not aefw

 

[REEF SMAC]

I think if it was AEFWs the bite marks would start at the base not at the tips. That is the good news.

The bad news, yah totally looks like a GFO overdose. Too much too fast. Looks like your Alk might have dipped too low at the same time.