The water in the fish tank is alkaline. You can add sunken wood into the tank, which can gradually reduce the pH and make the water acidic. In addition, we should also check the water source, test the pH of the water, if it is a water problem, we must pay attention to changing the water source, otherwise it will lead to pH fluctuations, which is harmful to the health of fish, and may even cause their death.
1. Goldfish: Goldfish is one of the common ornamental fish. As a eurythermal fish, it has a relatively wide range of adaptations to water temperature. They are mild and omnivorous fish, but they prefer meat. Normally, it is raised in slightly alkaline water, and a pH of 7. 5-8 is good.
2, pepper rat: pepper rat is one of the few like alkaline water rat fish, it usually in the bottom of the water activities, occasionally to the surface to breathe air. It is 22-26 ℃ in warm water to survive, can generally grow to 6-8 cm, as oviparous fish, its reproduction is very easy.
3. Three Lake Cichlids: Three Lake Cichlids are collectively referred to as cichlids from the three big lakes. The three big lakes are Lake Tanganyika, Lake Malawi, and Lake Victoria. The water quality of these three lakes is alkaline, so the fish here also like the alkaline growth environment. Usually, they have to be fed with natural food, such as brine shrimp.
