find that the fish tank water has a fishy smell, you need to change the water immediately. At this time, the ammonia nitrogen content in the water has exceeded the standard, if the water is not changed in time, the survival of the fish will be threatened. Water can not be changed too much at one time, usually not more than one third of the total amount of water, and there are regular water changes in peacetime.
tank exceeds the standard is mainly due to the feeding of too much food at ordinary times. Fish farming must control feeding, because fish do not have a stomach, so always feed will always eat, which will not only pollute the water, but also cause fish to suffer from enteritis and other diseases, so each feeding time should be controlled to ensure that fish eat within 3-5 minutes.
If the filtration effect of the fish tank is better, there will be no fishy odor in the tank, so if you want to remove the odor, you'd better strengthen the filtration. There are two main aspects of enhanced filtration. If the power of the original filter is small, it can be replaced by a larger one. If it takes a long time to filter, you need to clean the filter cotton.
fish tank is too large and the feeding density is relatively high, which will also affect the water quality in the tank, because the amount of excretion is very large. If you want to improve it, you should start from the source and reduce the feeding density. You can divide several fish into other tanks, or you can consider changing a bigger tank. In short, you can keep one centimeter of fish in one liter of water.
