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Discussion Starter · #1 ·
I am pretty sure i have hair algae. Its very long and does not branch so i dont think its clado as i originally did. Its also very brittle and when i try to remove it, it will break and start growing somewhere else.

Just a question, but what are the main causes of hair algae. I have a little link that said its caused by excess nutrients, but didnt state which. Ive been searching in the forums and have come across accounts saying too little nitrate or too little potassium.

So which is it?

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