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RE: [APD] Blue-Green Algae, or Is It?

If it appears to be in "sheets", is quite slimy, gives off a strong
fishy or swampy odor and rapidly covers everything, including the sides,
it's caused by cyanobacteria, not common algae.

The best treatment is to first remove as much of the material as
possible by hand, cleaning it off the walls and plants, and removing as
much as possible from the gravel, ideally vacuuming it. Do a partial
water change, again removing as much of what may be free floating as
possible. Then treat the tank with 200 mg. of erythromycin phosphate per
10 gallons.

Be aware that erythromycin can negatively affect the beneficial bacteria
as well, so make sure to keep close tabs on your water parameters,
especially ammonia and nitrites.

-----Original Message-----
From: aquatic-plants-bounces+rtcrosby=charter_net at actwin.com
[mailto:aquatic-plants-bounces+rtcrosby=charter_net at actwin.com] On
Behalf Of Billinet at aol_com
Sent: Friday, April 23, 2004 2:37 PM
To: aquatic-plants at actwin_com
Subject: [APD] Blue-Green Algae, or Is It?

I recently set up two adjacent 10 gallon tanks for an experiment.  One
hard alkaline water, the other mildly acid, very soft water.   Each was
planted with about 20 fast growing plants and stocked with about six
of fish (blue rams).  Each has a half inch of soil substrate
potting soil, soaked for two weeks) covered with an inch of 2mm - 3mm
inert gravel. 
 Lighting is from a Phillips 5000 K Phillips tube, at two WPG.

On the fifth day both tanks began to develop a bluish green or green
algae along the substrate and on some of the plants.  Since then the
algae has 
continued to grow and I suspect that it would take over the tank if I
removieit.  When I siphon it, it comes off easily and tends to hold

No fertilizers have been used, only moderate amounts of fish food.
There is 
no filtration, just a bubbling air hose for circulation.  

Nitrates and phosphates are too high, possibly from the substrate.
percent water changes are being performed ever day or so.

I am assuming that it will go away as the tank ages.  Do you thiink it
is the 
infamous blue-green algae or is it something else?  

Thanks for your thoughts.

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