hydrogen peroxide

[Jiri.Panacek at krn_os.ds.mfcr.cz]

What you think about use hydrogen peroxide for blue-green algae
(cyanobacteria)?

My friend me has advised, that he successfully had destroyed blue-green
algae with hydrogen peroxide during 5 days. He dosaged 2 x 3 ml hydrogen
peroxide a day for aquarium 200 l. 
Now, I try it. After 3 days looks like very good. Before that, than I dosage
h. peroxide, has been  java moss after 3 days completly cover blue-green
net.