Hey,
Go to BigAls and check out their BTA in their 'small' display tank. I think the tank is a 20-30 gal. Not sure. Find out the wattage on the lights.
You could try doing the 10gal but ofcourse its risky. Everytime any of us in the hobby add something to our tanks there's a risk. You minimize the risk with a larger water volume (concentration of pollutants is lower) and with using Mh on a larger tank.
Also, it might help if the BTA is a clone from someone's tank. Make sure the anemone isn't damaged. Test the anemone's health before you buy by feeding it.
Watch your powerhead intakes. Put some screens on them that are perhaps long with several holes so as to minimize the suction intake on each hole.
Go to Reefcentral.com and ask this same question.
http://www.reefcentral.com/forums/fo...?s=&forumid=36
Beware that many will tell you that your crazy and to not even attempt it. Just do your homework and decide for yourself after you know the risks and have learned how to take care of BTA.
Brad