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

[John Ruhland <john@drruhland.com>]

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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