I. Things to Consider When Purchasing an Aquarium:

1. Check the Location: Ensure the area where the aquarium will be placed has sufficient power supply, whether it's 220 volts or 110 volts.

2. Inspect the Floor: Determine the floor type (wood, concrete, or carpet).

3. Level the Base: Make sure the aquarium's base can be kept level.

4. Install an Extension Cord: Install an extension cord with five outlets.

5. Create a Buffer: Cut a 130cm x 60cm polystyrene board to place under the aquarium to prevent vibrations.

6. Clean the Aquarium: Clean the inside and outside of the aquarium. If using a 24-volt bottom heater, install it now, but be cautious as such heating devices can sometimes cause the bottom glass to crack (Dupla bottom heating cable).

7. Install Electronic Controllers: All electronic controllers should be installed near the aquarium's outlets, and all sensors should be securely fixed with vacuum suction cups.

8. Attach the Back Panel: Attach the decorative panel at the back of the aquarium.

9. Prepare the Substrate: Wash 70cm of sand and clean any decorations such as wood and rocks.

10. Install Filter Media: Place the filter media into the filter.

11. Connect the Tubing: Assemble the connecting pipes.

12. Install the Substrate Pump: Install the substrate pump, ensuring the suction tube is at least 5cm above the bottom board.

13. Set Up Lighting: Connect the lights to an automatic feeder or timer and set the desired times, for example, from 10 AM to 10 PM. Be careful not to exceed 10-12 hours and ensure the devices are operating correctly.

14. Mix Substrate and Fertilizer: Mix the bottom sand with fertilizer (Duplalit G), adding 1000 grams of fertilizer for every 20 liters of sand.

15. Lay the Fertilized Sand: Spread the mixed sand.

16. Add More Sand: Lay the remaining 50 liters of sand.

17. Arrange Decorations: Place decorations in the aquarium, leaving space for planting aquatic plants.

18. Fill with Water: Slowly fill the aquarium with lukewarm water, distributing the water evenly over the substrate.

19. Half-Fill the Aquarium: Fill the aquarium to half its depth.

II. Second Step

20. Plant Aquatic Plants: Follow examples for planting aquatic plants, removing any decayed leaves and trimming the roots to one-third their original length.

21. Fill and Fertilize: Fill the aquarium completely and remember to add fertilizer and water conditioners (Duplagan).

22. Install a CO2 Tester: Place a long-term CO2 tester in a visible location.

23. Connect a Bubble Counter: Connect a bubble counter to the CO2 injection system.

24. Install a Thermometer: Place a thermometer where it can be easily read.

25. Set the Thermostat: Set the automatic thermostat to 25-26 degrees Celsius.

26. Activate the Filter and Pump: Turn on the filter and submerged water pump.

27. Remove Plant Debris: Remove any leftover plant debris.

28. Clean the Glass: Carefully clean the inside of the aquarium glass.

29. Cover the Aquarium: Put on the aquarium cover.

30. Turn on the Lights: Switch on the lights.

31. Adjust Timers: Set the timers as needed.

32. Check Electronic Systems: Check all electronic control systems.

33. Record Installation and Measurements: Use an analysis manual to record the installation date and water quality measurements, which is crucial for determining when to replace fluorescent lights.

III. Third Step

35. Add Algae-Eating Fish: Introduce algae-eating fish (10 Siamese flying foxes (Epalzeorynchus siamensis), 6 Black mollies (Poecilia sphenops)), and do not feed these fish for two weeks to force them to eat algae.

IV. Fourth Step:

36. Introduce Other Fish: After two weeks, add other fish to the aquarium and begin feeding carefully.

V. Fifth Step:

37. Change and Monitor Aquatic Plants*: Replace some aquatic plants with species more sensitive to water quality changes and introduce fish that are also sensitive to water quality changes. Note: For every 1 cm of fish length, there should be 2 liters of water; do not exceed this amount when keeping fish.