I have an LTA about size small dinner plate had color (medium pink) under year plus old 10K MH lighting (3)- 250W. I just changed them over to 14K and now seems to be bleaching. Still eats, still expands, still has foot attached in the sand just not sure whether to move him up higher or not onto rock work or not. Hes real flat and wide with with MH on and then when they go off he seems to close alittle and extend his trunk upward. Any advice be great. THANKS