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Re: Black brush algae

Posted By: Iris <Iris6@aol.com>
Date: Sunday, 4 June 2000, at 9:58 p.m.

In Response To: Black brush algae (Dr. Momfish)

I've gotten blue-green algae in tanks with that much water flow, so I think the blue-green may still have something to do with nitrAtes, since I let the nitrAtes go up in those tanks.

However, I have had some tanks with high water flow where the *direction* of the flow caused more gunk to be collected by the filter - so that there was almost nothing left to vacuum, but I had to change filter pads more often. No blue-green algae ever. The connection here is obvious - water flow directed such that gunk ends up in filter pad (frequently replaced) instead of gravel = less waste breaking down in tank = less nitrAtes resulting.

Re: the black beard algae - you might be right about water flow there. I only had the black stuff once (really ruined my plants and the pleco wouldn't eat it), and the tank in question was very quiescent even though the nitrAtes were low.


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