The lighter colored one is definately a photosynthetic gorg. They do best in med flow and high light. Keep well away from corals with nematocysts. They can withstand most types of soft coral aggression but will lose hands down against an LPS
The brighter one does not resemble a gorg to me at all. If I had to guess, the scleractinia growth moreso resembles and SPS
. Seriatopora sp
is what it appears to be to me but it does not have the typical growth pattern in "fullness" but the coral tip are increadibley similar. Are the limbs of the coral flexible or very rigid?