Betta Fish Tank Film On Top Of Water

It could be food that dissolved which you don t want in the water.

Betta fish tank film on top of water. There are bubbles at the edge of the tank but no nest. Film at the top of the fish tank blocks the exchange of oxygen and carbon dioxide along the surface of the water according to fishlab even a small spot of oily film results in a reduction of how much oxygen and carbon dioxide are exchanged making it harder for your betta fish to get the oxygen he needs. I noticed that from the top the water looked foggy but from the side looked completely clear.

But i am a good hand washer when ever i put hands into tank. My betta tank has film. I thought it was the result of making bubble nests as it didn t seem to start until my betta made nests.

Got all the film out and didn t come back til i changed the water again. You see oxygen enters the water through the surface of your aquarium. I have a bunch of betta tanks and this tank is the only one that gets a film floating on the top of the water.

I read that it could be from soap and that i should always skim it bc it will be hard for him to get air. It usually occurs when he blows his bubble eggs. A thick oily film can act as a barrier preventing oxygen from entering your aquarium.

Some people have attributed this to feeding bloodworm that the film comes from food. You should do a water change. I changed my water last night by morning there was a film again.

The film on top of the water means there s something other than water in the tank that s separating out to the top. And as you know oxygen is pretty important your fish need it to breathe. I did this on my 2 5 gallon tank no filter so the film was normal from what he read about standing water and it worked well.