The materials required are: fish tank 120*55*60, and a submersible pump with a flow rate of 4500 liters/hour. The filter materials are filter cotton (physical filtration), activated carbon (chemical filtration), biochemical balls (biological filtration), and ceramic rings (biological filtration). Raised fish species: Luohan fish.

1. Arrange a piece of glass with a width and height of 52*52 18 cm on one side of the fish tank for overflow. Use glass glue to glue both sides and the lower part firmly; punch a hole in the lower left corner of the glass. Level with the water inlet of the water pump;

2. Arrange a piece of glass with a width and height of 52*40 cm 3cm outside the overflow glass to block water. Use glass glue on both sides; leave 8.5 cm in the lower part. cm, used to configure the grille;

3. After the water-blocking glass is firmly stained, dip a grille on top and bottom of it. The grilles can be customized at a plexiglass shop. The sizes are: the lower water grille is 52*10, the upper overflow grille is 52*6, and the grille holes are 5*0.5 cm; the lower grille is drilled, size and position Be level with the water pump; glue it firmly with glass glue;

4. Arrange the water pump and water inlet and outlet pipe fittings; the water pump is placed in the main cylinder; the water inlet pipe passes directly through the bottom of the filter; the outlet pipe is slightly lower than the water surface. Water comes out of the corner;

5. Use glass strips to divide the filter tank part into 3-4 parts according to needs, stick them firmly and put in the grate; it can be made of plexiglass, with small apertures similar to the grille; the grate can be disassembled , do not get stuck in the glass strip or filter; the bottom layer is above the water pump inlet pipe, and the top layer should be lower than the overflow glass, leaving space for filter cotton;

6. Arrange the glass ring, biochemical balls, activated carbon, and filter cotton in order from bottom to top; when the fish tank is running, the highest water level must not exceed the grate on the top of the glass ring, and the lowest water level must not be less than the grate on the bottom of the glass ring; pay attention to check regularly and add water in time. , to prevent the pump from burning;

7. Cut the decorative edge strips or stickers according to the required width and length, and place them on the upper and lower parts of the aquarium; for the sake of beauty, it is best to also put the side filter together Cover it up.

In this way, the side filter and back filter of the fish tank are made.