"Tynk" wrote in message
...

Did you use a syringe and flow it directly on the algae? Did you turn
off all current producing devices (powerheads, pumps filters etc etc)?
All H2O2 has to do is touch the algae and there should be a reaction
almost imediately, just like when you put it on a cut.it
fizzes.......did you turn off the tanks lights after treating for a
period of time as light renders it useless in short order.

* Yes, But I did it in the day and shut the lights off in case the fish
would have a bad reaction. The tank was partly covered with just enough
light for me to see. There was no reaction by the algae that I could see in
the dim light. Nothing! So I removed one of the anubias to a small pan and
squirted a 50/50 mix on the algae covered leaves. Nothing. I used it full
strength on a few leaves and it killed the algae and the leaves BOTH. I
noticed this algae was loaded with minerals. It was gritty where it attaches
to things. If gently scraped off leaves a mineral deposit that can't be
removed. Our water is very high in calcium. I may dilute it 25/75 next time.

Can't say one way or another with the lemon tetra, but Iknow its a
fact that when fish die with a PP treatment that is done correctly,
odds are that fish was destined to die anyhow and it wa not really a
fault of the PP (considering it was done correctly)...........The by
product given off is certainly not harmfull, as its almost pure wtaer,
much purer than what comes out of most homes faucets, along with
oxygen.

* It was probably a coincidence. All the other fish are fine but it had no
effect on the red-black algae.

I played aorund with a patch of algae that I normally keep on the
back of my tank for the various algae eaters, and H2O2 started it all
up to fizzing action and it sloughed off the glass within 2 days
time...and all I did was flow out the HP with a syringe. Dunno why it
did not work for you........

* I have no idea either but the Flourish Excel had no effect on it either,
nor do water changes, nor does plant food to help the higher plants starve
it out. It's slowed down now with less hours of light, one less fish
feeding, some nutrient hungry water lettuce and the rain water to soften the
water.
--

RM....
..
Zone 6. Middle TN USA
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