H2O2/ Excel

AmirM

Prolific Poster
Sep 26, 2007
40
0
6
Israel
Hello,
I saw in a few posts H2O2 and Excel mentioned as anti-hair algae, to some degree.
May I have more details please? Dosage, duration of treatment etc
What is the benefit of adding excel? after a big water change? only with a blackout?
Sorry for the long question(s)
Thanks
Amir