You will also be happy to know that the BTA is probably one of your best choices for the Percula clown or Ocellaris clown (which most folks call Percula).
Here's my favorite link when it comes to supplementing.
http://home.comcast.net/~jdieck1/chem_calc3.htm
I recommend that you use the flash version. It will tell you how much of what you need to add to balance your chemistry.