If you do a full LED retrofit, with the correct setup, you can keep pretty much whatever you want in the BC29 as far as lighting is concerned. From what I have seen, some people are putting anemones in LED tanks, and they will actually move to a lower light area of the tank cause the lighting is too intense! I dont know what the retrofit kit would cost to just add a 3rd PC socket and run a 50/50, but many people do that and raise nems under that additional lighting. Whether thats right or not, i dont know, just throwin out there what I have heard.
And yea, the BC29 is 2x36w PC 1 10,000k and 1 Actinic