How long has the tank been setup? Sounds like a bacteria bloom in a tank
that hasn't fully cycled yet.

Ron

"Victor M. Martinez" wrote in message
...
I've been meaning to post here about the cloudiness that sets on my large
tank after I make water changes and fertilize the plants. The small tank
doesn't get it, just the big one. Yesterday I changed about 30% of the
water and fertilized with Fluorish, Fluorish Iron, Fluorish Excel, plus I
added some Freshwater Trace. Like clockwork, the water started turning
cloudy about an hour after the water change. This morning it's cloudy, but
it should start clearing this afternoon. I also cleaned the filter
(Eheim), rinsing all the media in it.
One interesting aside is that everytime I make a water change, some of the
usually shy clown loaches come out and hang out all over the tank.

Anybody else get cloudiness after water changes?

Victor M. Martinez

http://www.che.utexas.edu/~martiv