I believe that many fish farming friends will encounter such a problem, that is, after raising ornamental fish in our fish tank for a period of time, a viscous oil film appears on the surface of the water.
The original floating and bright tank of fish appeared such a layer of viscous oil film, which is indeed very ornamental, and it is also easy to isolate the water and air, resulting in too low oxygen content in the water of the fish tank. So what exactly is this viscous oil film? Is there a way to get it off? If you have friends who encounter problems in this regard, you should take a good look down, and welcome to continue to pay attention to our "fish farming" account, and there will still be some dry goods about fish farming and share with you.
First of all, let's talk about the origin of this layer of viscous oil steamed buns. It is mainly because when we usually use feed to feed ornamental fish, it is inevitable that some greasy things will be added to the feed due to the production process, that is, some raw materials. Then after the feed is soaked in water, the grease is naturally released. Oil is originally a substance that is insoluble in water, and its density is lighter than water, so it floats on the surface of the water.
This is what we usually do when we feed ornamental fish.
After understanding the origin of this oil film, let's talk about how to deal with it, here are two more useful solutions.
The first is to use creatures to help with the processing, and we can often see this small tropical ornamental fish in the ornamental fish market, called black mary fish, or other colors of mary fish can also be. These Mary fish belong to the upper ornamental fish, so they often move in the upper layer of the water layer throughout the fish tank, and their mouth structure is also very suitable for finding something to eat on the surface of the water. So this layer of oil film, they are usually eaten.
If friends who regularly keep Maryfish observe their behavior, they can see such a behavior, their mouths are facing upwards, and they will suck things on the surface of the water from time to time. This is a very effective method of removing oil films, so that everyone can also try it. However, it should be noted that if the fish raised in the fish tank is relatively large, then it is still not necessary, because the Mary fish is relatively small and easy to be eaten by them.
Then you can try to use the second method, that is, to use a waterfall filter, generally the current waterfall filter will have a device with an oil removal film, that is, a small turntable is installed on the pipe that extends from the water suction port. This small turntable will usually rotate with the current of water, and some impurities floating on the surface of the water in addition to the oil film will also be transferred to this small wheel. Then usually clean this small wheel, you can get rid of these oil films and impurities floating on the water.
This is an effective way to deal with this layer of viscous oil film in the fish tank, I hope it will be helpful to everyone. If you also have some doubts about raising ornamental fish, welcome to pay attention to our "fish farming", all the fish farming needs to know is here!