After keeping a bta, I'm not sure light had as much to do with its' well being as the occaisional feeding and pristine water conditions. I kept mine under two 20 watt bulbs over a 29, a daylight and actinic, and it thrived (only 2 small fish, also). I've seen other similar setups with success, but also, those under blazing MH that appear to do equally well. It's too bad that each specimen doensn't come with a brief description of the habitat collected from, such as depth, current, fore-reef, lagoon, etc.

It is my opinion after reading many books and seeing first hand the "melting" of many anemones of all types including bta's at lfs's, that these animals should probabaly not be sold, especially to beginners (less than several years experience in the hobby).

Andrew