parkerge;587144 wrote: I thought that I read somewhere that the bulb size increases when they need more light. How long has it been in your tank?
The one I am asking about has only been in my tank for a week. I had a rose bubble tip in my older (75 gallon) tank and it was not doing well at all. The lighting was not strong enough (216 watt T5s) and the anemone grew small and always had stringy tentacles. When I moved the rose anemone into the newer 90 gallon with the increased lighting, it developed bulb tips.

To make my lighting even more uncertain; I have read 4 sites posts this evening (the sites only sell lighting of various types) that all indicate CF bulbs concentrate more intense light than do straight bulb types (i.e. T5). UGH....there is SO much controversy in salt water! I suppose I'll just have to keep an eye on my nems.