08-15-2011, 10:32 AM
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Originally Posted by flowerslegacy
I was able to get a better photo of the "fur" I discovered on my Pennywort. Is this Hair Algea? Or a fungus? Is it the same thing in my first pic that was growing on the stem of my Pennywort? I'm starting to find it on most of my other plants too. I even found a clump of it on the rocks, under one of my aquarium caves. In this pic, you'll see that it's growing on the last plastic plant I have in my tank. You can see that it's wispy and hairy, although in the first pic it looks more spherical. Are these the same things or two different issues? I want to make sure it's not lethal to my tank or my fish. I'd also like to know how to control it. Currently I'm just removing the plants and rinsing them off in conditioned water. I'm a complete plant novice and this is my first planted tank. Thanks!
It is certainly not "lethal" so don't worry on that account. Normally hair algae is green. The brown "fur" I get is denser than this, but I suspect related.
Chemicals are never the way to deal with algae or organic-related issues. One must find the cause and correct that. In this case, it is not something I would worry about in the last photo, but if it increases then we could look at light, organics (fish load, feeding, maintenance, fertilization, etc).
Chemicals frequently do more harm than good. Any substance that allegedly "kills" algae will also kill plants, or be detrimental. And any chemical regardless of what it is will have an impact on fish. It is my principle that nothing should go into a tank with fish except what is absolutely essential, and a water conditioner and plant fertilizer are the only two essentials except for necessary treatment for a health problem.