If your betta fish tank smells bad, it’s likely that something has died and is decaying in the water.

How to keep a fish tank from smelling. It usually collects in an aquarium and causes a foul odor when there is a serious bacteria buildup or a chemical imbalance in the. How to keep a fish tank from smelling. The most common cause of a smelly tank is a dead fish.

If you have a filter that has been sitting for a long time, it may be time to replace it with a new one. Prevent the smell of dirty filter in the tank. Your fish tank smells bad and is cloudy.

Check your filter, it may not be working, or just be slimed up, clean your filter gently once a week in tank water you've taken out. Get rid of the bad smell out of your fish tank by using activated carbon, water conditioner, and aquarium salt. Please check on how to do it below:.

First, avoid overfeeding your fish. How to prevent the bad smells that caused by fish poop. A bad smell is usually a sign that excess waste is in the tank, and usually excess food.

1) feed twice a day if possible. A stinky fish tank can make the hobby unenjoyable, so we'l. The rotting eggs smell is sulfur dioxide gas.

Second, avoid overcrowding, which can create excessive. Any food they can't consume accumulates in the substrate and eventually rots. If you want to correct the problem, change out 50% of the water, wait.