Lil lesson on Plate Corals

[sen5241b]

I come home from a three day weekend trip and my beautiful green Plate coral Funghia is shrived and a somewhat bleachy. 'She' stays shriveled for the next couple days. I look in the back and notice one of my two fuge lights is burned out while I was away. I replace the bulb and 'she' is back to normal in three days. This happened once before and the plate did the same thing.

I have two 20 watt bulbs and only one burned out. How much could phosphates have risen as a result? I'm thinking plates are more sensitive to phosphates than other corals. All my other corals looked fine like torches, trumpets, green star and others.

 

[BL1]

It could also possibly be a change in pH that affected it? When you turn the lights off at night and don't have a fuge light running the pH in your DT will drop.
Not sure if that is what was happening but, it's another possibility

 

[VAreef]

I am thinking along the lines of BL. Thats the only real effect I can see from 1 bulb being burnt out.

 

[sen5241b]

It could also possibly be a change in pH that affected it? When you turn the lights off at night and don't have a fuge light running the pH in your DT will drop.
Not sure if that is what was happening but, it's another possibility

Good point.