Do I need a top for the fish tank so the smell won't smell in the house?

It appears to me that you are not able to care properly for the tank, the water, or the fish. Dump it all into the alley.

You probably have a over crowded tank, you overfeed your tank or have a ammonia problem do a 50 percent water change, with the gravel vacuum. Read this hubhubpages.com/hub/How-To-Get-Rid-of-a-Green.

If your fish tank smells bad you should change the water. I don't use a top and my fish tank doesn't stink.

No, you need 2 change the water & get a good filtration system.

Properly balanced water, fish, etc. That is kept clean should not smell (bad, anyway). Something is not ok. Take a sample of water to the fish store and ask for their help.

You should get a top because stuff could fall in there.

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