Cloudy Water

[Frank Lawler]

It began after a 3 1/2 day blackout and 80% water change on account of GSA. Fortunately the GSA is gone, but the water has a definite milky haze to it. After 5 days and another 80% water change, it is back again, although not quite as much as before. Is this a bacterial bloom, and do I simply wait it out?
Incidentally, my Parrot's Feather, Rotolo Macranda, and Wisteria all grew quite well during the blackout. When I uncovered the tank, they were all tall and folded up, looking much like they do near the end of their normal photoperiod.

[Biollante]

Hi,

If it is white, it is a bacterial bloom…

• Not usually a big deal, it should run its course in a couple of weeks.

A bit odd for a mature tank, anything else going on, filters so forth?

What changes did you make to prevent the return of the BGA?

Biollante

[Frank Lawler]

It was actually GDA, not GSA as I had mentioned. It began when I lowered my light from 4" above the water to 2". Have since raised it back up. At 4", and with increased dosing of nitrates, both the water and the glass had been quite clear before.

[Biollante]

Hi Frank,

Then the water ought to clear on its own in a bit…

http://www.metacafe.com/watch/an-wjw...ng_into_party/

Biollante

[Frank Lawler]

Thanks Biollante.