Tissue necrosis on frogspawn?

[Jkelly63]

Hey all, 

 

this week I had a little mishap in my 20 gallon nano with alkalinity dosing causing a swing in alkalinity and all corals to retract, several water changes later parameters have stabilized with Alk at 8.3, but lost a monti cap on the way. Zoas, GSP and one of my gonis have started to open back up, my torch and hammer are still not open a whole lot yet, but this morning I noticed this on my frogspawn, is this STN/RTN? 

[seabass]

As you mentioned, stony corals react poorly to alkalinity swings.  I imagine, there isn't much more to it than that.  Try to keep things stable, and hopefully it will start to recover.

[Jkelly63]

2 hours ago, seabass said:

As you mentioned, stony corals react poorly to alkalinity swings.  I imagine, there isn't much more to it than that.  Try to keep things stable, and hopefully it will start to recover.

Would you recommend to dose some amino acids for recovery? I have red sea ab+

[seabass]

I wouldn't overdo it; but since you already own it, I'd use it sparingly.