Java fern with black spots- holes

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VioletEmber

Aquarium Advice Freak
Joined
Jul 8, 2011
Messages
489
Location
SF Bay Area, CA
My java ferns are developing black/brown spots that eventually turn into holes.


image-1805372684.jpg
Someone told me it was black algae and I should immediately pull it out and toss it. But in researching it - it doesnt seem like algae, it doesn't rub off. I just figured it was some kind of nutrient problem and I also just got brighter lights.

Please tell me they are ok and I just need to put them in a shadowy part of the tank!
 
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