Green Goblet turning Red?

[er..md]

Several months ago I purchased a green goblet and to be honest, it looked exactly like the picture of the red or glass goblet...wasn't much green. Now it has become significantly redder/browner. It looks fine otherwise and inflates significantly. But there is little to no green left.
It is under 144W (2 daylight and 2 actinic dual spectum) in a 24 G aquapod...
any body have any ideas on what the deal is?

 

[saltn00b]

i have once received candycane coral (caulastra) from someone. it was supposed to be all mint green. and it was. but then i switched over from weak VHO lighting to a powerful new T-5 Rig, and the outer rings quickly colored up to a nice deep red as expected with normal candy canes.
before:

after: