In article .com,
wrote:
Blackout is not effective for either of these algae BTW, it's specific
for BGA and works well if you dose KNO3 2x a week and do weekly water
changes (50%). Blackout can kill off Green water, but that's tougher.
Regards,
Tom Barr


So what kills staghorn Tom? I've had that shit in my tanks for about
10 years and *I think* have finally eradicated it by using H2O2 which
can be very hard on, well, everything. But I think it's finally gone now.

There seems to be a fine line between killing it off in a tank with
fish/plants/shrimp being ok and "oops, not much left alive in there is there".

Aquarium Pharmecuticals "Algae Fix" makes short work of the stuff but
is toxic to all inverts.

Somewhere arond 2.5cc/L is the H202 dose that kills it. Be careful.

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