We Have two make betas in one tank yes they are in different sides we also have two other betas in two other tanks the tank with the two betas is cloudy and smells like cat urine? THE other tanks are fine any ideas?? :confused:

Are the tanks like beta bowls or are they filtered aquariums?

From your description I would suspect that you are smelling ammonia.
Fish waste and old food decay which creates ammonia (which is also a very powerful oder in cat urine). This pollution clouds the water.

For an unfiltered Beta bowl,
Reduce the amount of food you feed each day, clean the bowl and replace the foul water with fresh clean water.

If it is a filtered aquarium,
1) reduce the amount of food you feed each day
2) do a 50% water change on the first and second day - if you are able to smell the ammonia, a large water change is required in order to dilute the toxins.
3) If the ammonia smell is gone, it will be time to allow the tank to establish the nitrogen cycle. This is done by leaving everything alone and letting nature take it's coarse.
This process also sometimes clouds the water due to beneficial bacterial blooms.
(If you'd like more information on this I'd be happy to provide it for you.)

Please let me know if you have any further questions.

Kae

It Is A Filtered Tank We Will Try The 50% Water Change Thanks

Your welcome
If you have any further questions or concerns, I'm here to help.

Kae

You probebly have too many plants or houses in the fish tank.