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Re: Odd smell on plants

> Date: Sun, 5 Jul 1998 19:35:22 -0700
> From: "Jennifer Koopmans" <flyer at island_net>
> Hi everyone, This is probably an odd question but so is the smell. I've
> noticed the last month or two that my aquarium has a smell to it. It's like
> dirt, but sharper. When I did a major pruning I took out some CT and mayaca
> that had been growing along the surface, the smell was very strong on them.
> Is it the plants? Or is it some algae that grows on them? I have a plain
> gravel substrate so I know it isn't that. Any ideas?

I would guess with 95% certainty that it is blue-breen algae (BGA) growing on 
the leaves very near the surface. Lots of light and BGA can fix nitrogen from 
the atmosphere. A little more water movement on the surfacwe would clear it up - 
but not so much that you lose a lot of CO2 (you'll have to guess just how much 
surface movement :-). 

George Booth in Ft. Collins, Colorado
 Do you want to know how I did it?