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Diana K · 07-01-2009, 01:44 PM

Blackout is about the most natural 'algacide' that I know of.
UV Sterilizer will work, too, and not harm the beneficial organisms.
Floating plants will create a natural 'blackout'. When they get too dense you can remove half of them, allow more light into the tank to help the other plants. If (when) algae comes back, allow the floaters to cover the surface for a while. Floating plants remove lots of nutrients, too.

Be best to figure out what triggered it, though, or else it can come back.

07-01-2009, 01:44 PM	#2 (permalink)
Diana K Senior Member Join Date: Dec 2007 Location: Near San Francisco Posts: 508 iTrader Ratings: 0 Plant Points: 26150	Re: Green Water in El Natural Blackout is about the most natural 'algacide' that I know of. UV Sterilizer will work, too, and not harm the beneficial organisms. Floating plants will create a natural 'blackout'. When they get too dense you can remove half of them, allow more light into the tank to help the other plants. If (when) algae comes back, allow the floaters to cover the surface for a while. Floating plants remove lots of nutrients, too. Be best to figure out what triggered it, though, or else it can come back.