"Aquarijen" wrote in message ...
Why go to all that trouble and cost when you can blackout of the tank
for 3 days and cost you nothing and is 100% effective at killing it?

Not sure why people suggest drugs vs something that is FREE and
effective.

Do 50% water change, add 1/4 teaspoon of KNO3 per 20 gal.
Cover with trash bag towels etc so that no light gets in for 3 full
days.
Remove CO2, increase water movement.

Do 50% water change and add the KNO3 back and make sure you dose
enough KNO3 for the tank take care of the tank regularly from then on
with dosing and water changes.

You need to put this method in your web site and detail it out, not
antibiotics.
It's Free
It's faster
It addresses the long term problem, (poor plant growth)
It's simpler and not everyone has access to antibiotics.
It's 100% effective also.
It's been done many many times all over the world.

Regards,
Tom Barr


The OP said that he did blackouts several times and the algae came back.
-Jen

He did not add the KNO3 back and has run low on NO3.
It's that simple.

When the plants grow well, the algae does not, there is a reason for
the plants not growing well, generally with BGA, low is the primary
cause for blooms.

I've done this and have trace psores of BGA in my tank, we all do.
Every sample I've ever looked at under the scope has had Oscillitoria
which is the geneus we have in our tanks.

I can lead you to water but if you do not follow the advice, I cannot
help and I suggested a solution, whether someone choses to do it, it
completely out of my hands but the method does work if you follow it.



Regards,
Tom Barr