Odor?

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kcdavebob

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Dec 17, 2002
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I just cleaned my aquarium this weekend for the first time. I did a gravel vacuum, cleaned the algae off the sides, replaced the filter and did a 20% water change. Now my aquarium looks good, but it smells bad. There is now a distinct odor eminating from the tank. Any ideas about what this is? How do I combat this?

Thanks your help.
 
I'm not sure, but how about a 50% water change? :confused:
 
Smell green, or rotting? Running carbon will reduce the smell, but I'd look around for a cause as well. Otherwise, it will just come back. Usually, my tank only gets a green small when the top gets a bit of water underneath the edges and algae starts growing there. I rinse it off, dry it, and this goes away.
 
Odor

I don't know what a "green" smell is. I would say it is probably a rotting smell. I am currently running carbon, so I'll give it time to work and maybe that will take care of it.
 
Algae--smells like sour lawn trimmings.

If it's a rotting smell, you might want to look around the hood to see if there's any old food that got caught on the rim, ect. How often do you clean the tank? Did you clean out the filter compartment, or just put in a new cartridge?
 
Re: Odor

Originally posted by kcdavebob
.... I would say it is probably a rotting smell. ...
Click to expand...

Are you running an Under Gravel 'filter' ?
 
Can you elaborate on "replaced the filter"?

I trust you don't mean you replaced all the media in it?
 
well, I replaced the filter cartridge. I have a filter system that hangs over the side of the tank. The previous filter cartridge was very dirty and had been in use for two months.
 
Is there anything else in the filter box besides this cartridge? Reason is, if the cartridge you replaced contained all the bacterial fauna, you have just thrown away your filtration.
 
"you have just thrown away your filtration."

So you NEVER change the filter cartridge? If that's the case, why can you buy filter replacement cartridges? Bacteria for the "Biological" filter live in the tank as well and should seed itself in the new filter media in a fully cycled tank. At least that is what I understand from reading info in this forum.

I am open to discussion on this topic as well.
 
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