I was reading up on that last night. They say they are very effective on
algae, but it of course needs to be in the water. UV would probably be very
good at preventing expansion of the BBA by killing the spores and gammets
traveling in the water. It would probably kill those outright which in
theory would stop the spread of BBA. But of course it would not do anything
for the stuff already on surfaces in the tank.

UV might be a good way to go for someone who wants to mechanically get rid
of what they can themselves, and then use the UV to kill the spread through
the water.

I'm going with Chlorine. The possibility of getting rid of BBA permanently
is just too attractive to pass up.

Chris.