[Zapins]

I think c is probably the single most accurate statement, but we probably know a little more than that, so in reality the truth somewhere between c and b.

As for the cure - many people have killed if off in slightly different ways, but the ones that tend to be most successful all seem to revolve around letting it run its course for 2 weeks (without touching it), then scraping and removing it with a water change, and/or reducing the light duration (7 hours & less intense lighting) and intensity for 2 weeks and doing water changes.

Ultimately, it is not invincible and you will eventually get rid of it, although it is probably one of the worst and most disheartening algae types to get (second in difficulty to remove only to a severe infestation of BBA).

 

[Zapins]

In my experience, it's definitely not easy to fix. But anyway, I guess you are the "a" camp.

Hehe something about people splitting up into different camps over this is amusing to me

Perhaps removal of GDA is all about the time frame you view your tank in. If you are someone who checks the tank daily waiting for each new leaf to emerge then GDA might be an eternity of pain, but if you are someone who worries about how well their anubias patch is going to fill in overa 1 foot piece of drift wood then GDA might seem trivial and very brief compared with other persistent types of algae.

 

[Zapins]

You want to know the truth about green dust algae?

......Its EVIL!

That is all

 

[Zapins]

Newt, just to clarify is that graph for the cyano or for the dust algae? I've never read about that before, pretty interesting stuff, do you have a link to a larger article? I'd like to read more about it.