for goldfish, on the whole, goldfish is more like shade, goldfish can not accept sunshine for a long time, especially can not be exposed to the sun. Direct sunlight and exposure to the sun can easily cause harm to the health of goldfish. At the same time, long-term sunshine can easily make the algae in the fish tank grow crazily, destroy the water quality in the fish tank, and adversely affect the growth of goldfish. A large number of algae will also make the fish tank turbid, greatly reducing the ornamental value of the fish tank.
Although goldfish prefer shade, goldfish also need sunlight. Proper sunlight exposure can help goldfish grow healthier. Ultraviolet rays in sunlight have a good bactericidal effect, which can reduce the bacteria in water. Proper sunshine can also make the body color of goldfish more gorgeous and beautiful. In
different seasons, the intensity of sunshine is different, and the time that goldfish need to shine is also slightly different. Generally speaking, in spring and summer, the sunshine is strong, about 1-2 hours a day. In autumn and winter, the sunshine is weak, so the time of sunshine can be lengthened appropriately, about 3-4 hours a day. But when the sun shines, we must pay attention to avoid the direct time at noon.
