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Steve Dixon wrote:
>I've just come out of a green water problem quite successfully by
>following Karen Randall's advice. Two steps: 1. Eliminate excess
>nutrients in the water column (through water changes). 2. Darken the
>tank for 4 or 5 days (I used a dark blanket and duct tape and kept the
>lights off the entire time feeding the rainbows once a day in the dark
>- -- poor things!).
Just a couple of notes. While, of course, any excess nutrient problem
should be corrected before darkening the tank, the main reason for a BIG
water change just before wrapping it is to remove as many algae cells as
possible from the tank. If you kill off huge masses of algae in a tank, it
may overload your bacterial filter. The bacterial activity may reduce O2
to levels that are dangerous to your fish.
I would prefer not to feed the fish at all during this period. The fish
can easily go a week without food if they are well fed and in good health
before the beginning of their "fast".
Aquatic Gardeners Association