BTA need stable water parameters, pristine water conditions and strong lighting. If I remember from previous post you have T5 and moon lights, that is not enough light for a BTA. Please only buy specimens that your tank will support and not specimens we want. You post previously that your nem you had for 4 months was dying and it was actually a Tourch Coral. Sorry but if you do not know the difference between a Tourch Coral and a BTA, you should do more research, also if your Tourch Coral died, you may have water issues and BTA's are a lot less tolerant than a Tourch Coral is. Not trying to be harsh but probably 80 percent of BTA bought never make it past 6 months due to the owner and or tank not ready.