From another site:
"Torch Coral
(Euphyllia glabrescens)
QUICK STATS
Care Level: Moderate
Temperament: Aggressive
Lighting: Moderate
Waterflow: Medium
Placement: Bottom
Water Conditions: 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.023-1.025
Color Form: Green, Tan, Yellow
Supplements: Calcium, Strontium, Trace Elements
Origin: Australia, Indo-Pacific, Solomon Islands
Family: Caryophylliidae
Polyp Size: LPS - Large Polyp Stony"
That being said. I have T5HO lighting. My torch is a little less than half way in my tank (155G). This is the third tank this torch has been in and in all three it's been in slightly different positions. It's been under PC's and T5HO's, lighting did not seem to make that huge of a difference. What did make a HUGE difference was the water flow. My torch prefers moderately high flow, it has grown almost twice as fast since I put it in a higher flow area of the tank and it's tentacles extend much further. It's a very easy coral to care for and can adapt to a lot of different conditions. If you want it to grow even quicker, feed it mysis or brine once or twice a week.