stylo STN

[Fishfinder]

I know that stylos are pretty much bug free but I cant figure out my issue. All of my stylos have had STN over the last couple weeks. They still have polyp extension at the top. The STN has started from the bottom slowly working up. Its my green, purple, blue, all of them. Acros and montis are fine. Growing with good PE. Only stylos seem to be affected

 

[nautical_nathaniel]

Stylos are most happy in stable water conditions, have you had any significant changes occur in the tank recently? Water chemistry is most likely the culprit in my experience with these corals. I've had them completely freak out while other SPS corals were totally fine.

 

[Fishfinder]

Ya I had an alk dip last week. I assumed it would have hit my acros first. I thought stylos were hardier SPS