In article , Dogma Discharge wrote:

"Richard Sexton" wrote in message
...

Add nitrate. BGA cannot grow in the presense of enough nitrate (30 ppm)

Can you tell us why this is so?

Algae must have stable conditions. Try to grow it alone sometime. Shocking
it kills it, 3 days of dark, nitrates and people fertilization from now
on has always got rid of it quickly for me.

If I see somes it invariably means I havnt been fertilizing that tank enough.

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