spank me for differing in my opinion Yote, but I have three BTA's in about 6 watts per gallon. I do agree that the more light, the better. They do need good water conditions and I would wait between 6-9 months before adding one. NO WAY for a tank that has been around for just a month. Be patient, you will be happier when it is not dead in your tank.
-Dr Marco :sfish: