Nocturnal GBTA


So i got this new GBT about a month ago and once placed in the DT it moved and found a spot it liked(its foot in a cave and its tentacles sticking out the front)
all was well for awhile until i noticed that it would only be out right in the morning or after the lights were all out except the moon lights, even in the middle of the night it was out all tips bubbled
right now, the lights are on and its hiding in the cave deflated like most days, whats with it? its eating and has no scars or other weird behaviors
thought they were supposed to like STRONG light, this one doesnt even like actinics, what gives?