Generally, you need to put several fish in the tank. If only one fish is dead, you need to fish out the dead fish in time, and then change the water appropriately to see the situation of other fish. If several fish are dead, it means that the tank is not open well, no matter which link has problems, the best way is to re-open the tank, wait until the water is good, and then re-prepare to break into the tank fish to test the water.
1. Live: The fish that run into the tank must have solid skin and live well, which is more suitable for beginners to raise. This kind of fish is not easy to die, and the requirements for water quality are not high. Therefore, as long as they can adapt to the water environment, it proves that they are well raised in water. If they can't survive, it proves that the tank is a big problem and needs to be reopened.
2. Health: The fish in the tank should not only be able to live, but also buy healthy ones. If the fish is already sick, it is not easy to determine whether it is the water problem. Therefore, we need to pay attention to the source of fish, do not casually buy fish from outside to break into the tank, must be bought in regular stores, but also buy a few more, so that the possibility of disease will be much smaller.
3, easy to raise: The first fish often do not know how to control the amount of feed, or the frequency of water change, so the fish not only to live, but also easy to raise, the acceptable range of feed is relatively wide, eat too much will not get sick, at the same time changes in water quality and water temperature will not cause discomfort to the fish.
