I can't get a fish without changing water1. Regular addition of nitrogated bacteria: it makes the water in the fish tank clear and clear, and it is not grey. Regular cleaning of filters: the filters are regularly washed and cleaned away from chemicals such as laundry powder, preferably with multiple scavenger filters. 3. Feeding water grass in fish cisterns: weeds grow with carbon dioxide to produce oxygen and increase the oxygen content of fish

Notifier/sutsuReference: time stamp is the total number of milliseconds from 1 january 1970 (08:00 gmt) to the current time. It is also known as unix timestamp. The time of the computer has been unified since 1 january 1970。The only time stamp that cannot be forged is the most important indicator used to judge information and is legally efficient. Will there be a time stamp from the futureEvery person's life is sad, and if you're a compute

Hello, i'm here today to answer your questions. The solar panel works, the solar panel works, and many of the partners don't know it yet. Now let's see1. Solar cell power generation: solar cells are devices that respond to a pair of light and can convert light energy into electricity。2. There are a number of types of materials that can produce photo-voltaic effects, such as single crystal silicon, polycrystal silicon, non-crystal silicon,