I clicked on this thread for the first time today. I only read the last 5 pages or so. This guy's been jerking you around for quite a while. Sometimes almost taunting people in the other (fluconazole) thread.
Here's the funny thing. I have some bubble algae and picked up a bottle of virbant a month or two ago. After I spent $25 on it, looked it up online and decided against adding it. It's still sitting in a cabinet, unopened. I don't have a dog in this fight, but after the way he's been acting here. I can honestly say I won't use it.
As other people have said, no one cares if it has algaecide in it, as long as it says it has algaecide in it. I'd even be fine with it containing a 'proprietary algaecide' so they don't have to tell us exactly what it is. But I'd still like a general idea as to what I'm putting in my tank.
IOW, the way UWC has been acting has turned me, and probably others like me, from a potential customer because I didn't have a strong opinion one way or the other, to actively pushing away another, albeit small, source of income.
Now, if anyone has a good way to get rid of some bubble algae, I'm all ears. Tank is too small for tangs (40g) and I get worried about emerald crabs attacking corals or other inverts.