It indicates that it is high time you changed the water. What you are seeing is a bi product of decomposition taking place in your tank. All fish need at least 1 gallon of water per inch of body length and they also need at least a 50% water change weekly.
When setting up a betta tank with a film on top, it is important to consider proper filtration to maintain water quality, regular water changes to prevent stagnation, ensuring adequate oxygen levels for the fish, and monitoring the film to prevent buildup that can harm the betta.
The film on top of your betta fish tank is likely caused by a buildup of oils, proteins, and other organic matter. To get rid of it, you can gently skim the surface with a clean paper towel or use a surface skimmer. Regular water changes and proper filtration can also help prevent the film from forming.
To prevent film from forming on the water in your betta fish tank, you can try increasing surface agitation by adding an air stone or a small filter. This will help to break up the film and improve oxygen exchange. Additionally, regular water changes and proper tank maintenance can help prevent the buildup of organic matter that contributes to film formation.
The film on top of your betta tank is likely caused by a buildup of organic waste and oils. To prevent it, you can try increasing surface agitation with a filter or air stone, doing regular water changes, and avoiding overfeeding your betta.
To determine if your betta fish is dead, observe its movement, breathing, and color. A dead betta fish may be floating at the top of the tank, have no movement, and appear pale or discolored. If you are unsure, gently nudge the fish or tap on the tank to see if it reacts. If there is no response, it is likely that the betta fish has passed away.
Bettas can swim anywhere in a tank but they tend to hang towards the top third most of the time.
Its probably because of a disease fish get that spreads into the water
If a betta fish is floating at the top of the tank, it could indicate a swim bladder issue, which may be caused by overfeeding, constipation, or infection. It's important to monitor the fish's behavior and water parameters, and consider adjusting its diet or seeking veterinary advice if necessary.
Your betta fish may be laying on its side at the top of the tank due to a variety of reasons, including stress, illness, or poor water quality. It is important to monitor your fish closely and consider factors such as water temperature, water quality, and any recent changes in the tank environment. If the behavior persists, it is recommended to consult with a veterinarian or a knowledgeable aquarium specialist for further guidance.
I Know This Wasnt Your Q. BUT NEVER LEAVE A BETTA FISH IN A TINNY CUP By:Expert Serena
A male beta fish blows a lot of bubbles. so if there are a ton of bubbles at the top of the bowl or tank, your fish is most likely a boy.
from my own personal studies in aquarism i concluded that the male will wrap-around the female depositing the eggs into the male who will place them into a bubble web at the top of the tank. p.s. what sex is your betta?