The death of pets is always a sad event for the owners, even for those who only have fish. Especially when they start dying one after another. Let's try to figure out why the fish die in the aquarium.
Living Conditions
The first and most common reason that fish die one by one is the quality of the water . Perhaps it has not changed for a long time, and harmful microorganisms have developed there, or, conversely, before the change, the water is not sufficiently settled or had a temperature much higher or lower than necessary. To eliminate this cause, you must immediately change the water in the aquarium.
The quality of the feed can also affect the fact that the fish began to die. The feed may prove to be overdue or completely unsuitable for the type of fish that you hold.
Another factor important for fish - the conditions of illumination . They should be optimal and maximally uniform.
Fish can start to die even in a new aquarium. The reason may be that the shops often wash the aquariums to give them a more presentable appearance. And it is not known which detergents are used for this purpose. Therefore, if the fish began to die in a new aquarium, you must immediately put them in another tank, and carefully wash the aquarium.
Disease
The reason why aquarium fish die, can become a disease , entered into the aquarium. And it can get there in many ways. For example, with insufficiently purified water, but more often it penetrates with another, already infected fish. This can happen if you recently purchased and put a new pet in the aquarium. Especially the risk increases if you want to contain decorative fish in one tank and fry caught in local water bodies. To avoid contamination of fish from the new one, each newly purchased fish should be placed in the "quarantine", separate storage for a few days before the holiday in the aquarium.