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Subject: [GSAS-Member] UV light to control algae, ecological consequences of using bogwood



I was so busy this week, I'm just now able to give a follow-up report on
my use of the UV light for the blue-green "algae." This life form is small
enough that the pleated filter of the Magnum 350 did not filter any out.
I did not try precipitating it out, although that may have been my next step
if the UV light had not worked.

Originally, the algae suspended in the water was clouding the water so much that one could see maybe 4 to 6 inches in. After 6 hours using the UV light, it was about 8 to 10 inches. 24 hours after that, so 30 hours after first using the light, one could see the color of the wall through the tank, and an additional 24 hours later, it was nearly normal. At this time, I moved the light to another tank, where two of my Kenyi have developed a nasty-looking infection. They have been fighting while I quickly try to get another tank running in order to be able
to separate them.

John

(Still looking for more hiding places for the fish as well, if anyone else bogwood, clay pipes or rocks that would be appropriate for the Kenyi African Cichlides (they are about 6-7 inches long). Sorry, I will not be able to make the auction. : (
Does anyone know if there are negative ecological consequences to using
bogwood. Are we destroying habitat or doing other harm by using it, as we are when we use peat? Is it practical to use wood from our area, and just submerge and waterlog it? I'm afraid that it will work its way loose, shoot
up to the surface, and damage light or cover.

Thank you

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