Sometimes, high temperature also decreases the level of oxygen in the aquarium water. Before topping up the water in the aquarium, let it reach room temperature. A disease can also be a reason why your fish is swimming at the top of the aquarium. Swim bladder is a common disease in fish. It can also cause the fish to swim sideways or upside down. Constipation is the biggest cause of swim bladder in fish. Sometimes, overfeeding can also cause this problem.
You might notice that these symptoms occur immediately after the fish eat and then go away in a few hours. To treat this problem, you can feed your fish green peas, oranges, or melon to prevent constipation. Adding a lot of fish can also cause low levels of oxygen in the aquarium.
Too many fish means more pollution and more need for dissolved oxygen for breathing. An overstocked aquarium will cause a shortage of oxygen, making the fish swim to the top to gasp for air. This will give you a quick idea if you have added more fish than the capacity of your aquarium.
That said, for a more thorough analysis, you will also have to consider other factors. Some fish are bigger while some fish varieties are more aggressive and hence need more space. The water temperature also affects the concentration of oxygen in an aquarium. Water with higher temperature tends to have less dissolved oxygen than cooler water. Check the fish for any signs of white spots, fungus or slime. If its pectoral fins are clamped it can be a sign of disease too.
If you suspect disease, treat the whole aquarium with a disease treatment , as recommended by the manufacturer. If you have one, install an airpump and airstone to bring vital extra oxygen to the troubled fish, and help it to breathe. In extreme circumstances, a fish may be hanging at the surface because of low oxygen, high ammonia and disease, a common example of which would be a goldfish in an unfiltered bowl.
Disease can come from the stress of being kept in poor water and few if any fish could survive those three circumstances for long.
Add beneficial filter bacteria on a regular basis and ensure that oxygen levels are always high, either by way of a venturi supplied with your internal power filter, or a separate airpump and airstone.
There will always be exceptions, like fish which are meant to swim at the surface. However, the cause of that gasping could be due to several factors.
The warmer the water gets, the less oxygen it holds. In hot weather the tank may be overheating naturally, so try to cool it and boost aeration. Gasping fish is often an early warning that something is wrong, so if the tank is very warm and heater light on this could be to blame and will need replacement.
Heaters are generally reliable, but when they go wrong the consequences are usually devastating. Both ammonia and nitrite affect gills and can cause gasping, so test the water at the first sign of trouble.
Hiding Fish: Hiding is completely natural behavior for most fish, especially when they are first introduced to their new aquarium. Just make sure you keep your fish comfortable and healthy, and he should start coming out of hiding more readily. Fighting Fish: If your fish are fighting, it generally means that they are not a compatible fit to be housed in the same aquarium. Many fish are naturally aggressive and will defend their territory to the death. Before stocking your aquarium, you should do research on which types of fish are compatible with others together.
Here are some tips on keeping a peaceful aquarium:.
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