[canadawest]

My BTAs look nearly identical to Sam's, and photos are available on my website (link below in signature line). I will try to get some updated photos posted in a couple days, but both of mine are HUGE now compared to the older photos on the website. The website photos are pre-MH.

In regards to the MH upgrade, it hasn't really affected the BTAs as the MH is mounted in the center of the tank, and the BTAs are off to the left side under a combo of 2 NO 6500K lamps and 2 VHO atinics on my Icecap 660, which was the lighting the BTAs have been living under (and successfully I might add) for the previous 9 months before the MH addition.

I think the increased expansion I've noticed over the past few months could be due to the BTAs enjoying the MH intensity coming from the center of the tank, but neither BTA has bothered to move under the MH lamp in the 6 months I've had it running, so that leads me to believe they do not need to be directly underneath it to be happy, otherwise they would have moved there by now, right? :|

And as an aside, neither of my BTAs have ever shown dominant "bubble tips" since I've had them, and that's been 15 months for the parent and 10 or so months for the split. Both continue to grow at a rapid pace and look very healthy. Both are also active hosts to my pair of Percula clowns, so perhaps hosting is a factor in non-bubble-tip formation?

Just opinions based on observations I have made of the animals in my own tank, as I am certainly not an expert in anemone species.