New Aquarium Bad Smell

MJB234EVER

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Feb 26, 2005
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Los Angeles
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I Just Got A 10 Gallon Glass Aquarium I Have 1 Goldfish In It. Its Been About A Week The Water Is Clear But There Is A Horrible Smell. Any Thoughts?
 
I noticed that too

My first tank seemed to smell a lot for while then it went away after about amonth, I guess it was balanced and cycled then. Be sure to feed very lightly, only once a day or less, until the tank is cycled.

Are you testing for ammonia and nitrite? If not, do extra water changes every few days for a month or so.

You'll need to vac the gravel also, especially with a goldfish. Try to not add any more, 10 gallons to one goldfish is about right.
 
another thing that might cause a bad smell is check along where the lip of the hood meets the top of the aquarium... Sometimes moisture can accumulate there, and you'll get some lovely-scented muck in there.
 
I experienced that too!

I located the smell in my new tank, it was the new gravel.
But after about 1 month, after the tank cycled, it went away. For that reason, I hate the idea of a new tank, new gravel and another cycling, so I haven't bought another tank yet. The smell was AWFUL!!! My sympathy goes out to you,
 
Please post the same thing only once as others wil see it.

The smell is because your tank is cycling. Go and get a test kit to see where you are.

Now a goldfish in a 10g is pusing it. They produce a lot of wast and overloading the tank. Try getting a 20g or return the goldfish, do a fishless cycle, and then stock it with fish that fit.
 
My tank smells like a lake and I guess it's about 6-8 weeks old.

I had 6 Tetra's, 3 Angel Fish in there.

I added 3 Dwarf Puffers last week.

My wife wanted more Fish, so we bought 4 guppies and 6 neon tetras.

2 Guppies have died along with 2 Neons.

My wife said she saw some brown stuff on the underside of the lid and on the filter tube.

Is this algea? Is this killing the fish?

Or is the tank not cycled? I just changed the removable filters yesterday. They have carbon in them. I put them in and did a water change, about 25%.

The water was a little cloudy when i added the new fish.

Any thoughts anyone?

Thanks.
 
Homebrewhead,

How big is your tank?
What is currently living in it (so many deaths and adds, not sur eof the fish count)?
What are the levels of ammonia, nitrites, and nitrates?
Do you have a test kit?
How long have you had the tank?
Did you start it from scratch?
Angels eat neons in the wild.
Puffers can be quite aggresive and are known to nibble on tank mates.
 
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