1. how the oil film in the fish tank is produced

There are many possible sources of the oil film in the fish tank.It may be because there are impurities in the water and there are some organic substances in it.It may also be because the oil contained in the algae dissolves in the water after it rots.If the filter is not cleaned for a long time, the filter material itself is very dirty and will spill some grease.In addition, if the feed is not good, the oil content is relatively high, and the oil will be decomposed.

2. How to remove the oil film

1. Manual cleaning: There are generally two methods for manual cleaning of the oil film.The first is to use oil-absorbing paper, which is placed at the opposite corner of the outlet, and the oil film will be washed away by it.The second is to use a cup to scoop out the oil on the surface of the water bit by bit, this method is more time-consuming, and is a palliative.

2. Fish culture and cleaning: If you think it is too troublesome to clean the oil film regularly, you can also raise some fish that eat oil, such as moonfish, black Mary, guppy, etc. They belong to small tropical fish, which have the characteristics of swallowing oil film, and are more suitable for group culture, and look very beautiful.

3. Oil remover: In addition to the above two methods, you can also put an oil remover in the bathtub. The water goblin can also be used for this kind of filtration. In this way, when filtering the water, the oil can be separated, and the water surface will not produce an oil film.