1. Recommended according to Baidu's experience: First make a rectangular fish tank, then you need a piece of glass and cut it into three pieces with a glass knife. If the size is just a little smaller than the width of the fish tank, you can directly put it horizontally in the fish tank, put three pieces of glass, and then fix it with glass glue. It is best to put more glass glue to prevent it from being fixed.

2. Then, on the side of the fish tank against the wall, make a small rectangular reservoir on the three glass strips just fixed. The length should be the same as that of a fish tank. If it is wide, it is about 15CM to 30CM. If the text is unclear, please look at the picture below.

3. Divide the small reservoir above the fish tank into four sections with five pieces of glass that can just be inserted. The reason for this division is that biochemical cotton and the like can be put in and filtered.

4. After the glass baffle is made, turn two eyes at the water inlet and the water outlet to let the pipe enter from the water inlet, and then the water flows out from the water outlet.

You need to buy a submersible pump, put it under the water inlet of the fish tank, and then put the pipe at the water outlet of the pump out of the glass hole.

6. After the pump pipe is finished, put the filter cotton in the first section of the filter tank, that is, the first tank where the pumped water enters, and then put a large number of ceramic rings in the back tank to cultivate nitrifying bacteria.

7. The glass glue should be pasted everywhere to prevent water leakage. Then, after fixing, turn on the oxygen pump and test whether there is water leakage. If not, it can be completed.