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Originally Posted by standoyo
from xp they only happen in low light areas...
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I guess you're right. Mine is low light now and few of my plants have these brown algae. I found that they tend to grow on older leaves (really?). I have a flying fox but thay guy only scrape those on the aquarium walls. very seldom scraping those on the leaves. Can see the mouth marks left on the walls and leaves.
I also use Tetra FloraPride. Is this fertilizer really encouraging brown algae growth? Is high light really kill/disallow them growing? If so, how many watt per litre show it be?