How to change water in fish tank bottom filter
The fish tank bottom filter filtration system is a high-efficiency filtration method commonly used by aquarium enthusiasts, but improper water changes may cause water quality fluctuations or system damage. This article will combine the hot topics on the Internet in the past 10 days to explain in detail the correct steps and precautions for changing the water in the bottom filter.
1. Hot aquatic topics on the Internet in the past 10 days
| Ranking | Topic content | Number of discussions (10,000) |
|---|---|---|
| 1 | Maintenance misunderstandings of bottom filter system | 18.7 |
| 2 | New method for culturing nitrifying bacteria | 15.2 |
| 3 | Cases of fish diseases caused by changing water | 12.4 |
| 4 | Smart water changing equipment evaluation | 9.8 |
| 5 | Tips for using water quality detectors | 7.5 |
2. Standard process of bottom filter water change
1.Preparation
| Tool list | function |
| water quality detector | Detect PH/ammonia nitrogen and other indicators |
| siphon | Safe pumping |
| trapped bucket | Storing pre-treated water |
| thermometer | Adjust water temperature |
2.Operation steps
(1) Turn off the power of the water pump to avoid dry burning
(2) Use a siphon to draw out 1/3 of the old water
(3) Clean the filter cotton but keep some old cotton
(4) Slowly inject isothermal trapped water (temperature difference ≤ 2℃)
(5) Add nitrifying bacteria after restarting the system
3. Solutions to common problems
| Problem phenomenon | Possible reasons | Solution |
|---|---|---|
| The water turns white after changing the water | Nitrification system collapse | Reduce water changes and increase oxygen |
| Stress in fish | Sudden changes in water temperature | Extend water injection time |
| Water accumulation in bottom filter tank | Pipeline blocked | Check the smoothness of the drain pipe |
4. Expert advice
1. Control the amount of water change every week to 20-30% to avoid drastic fluctuations in water quality.
2. Stop feeding 24 hours before and after changing the water.
3. It is recommended to use RO water or add water quality stabilizer
4. Establish a water change log to record various parameters
5. Increase the frequency of water changes 2 months before setting up a new tank.
5. Recommendation of smart devices
| automatic water changer | Preset water change ratio | ￥1200-3000 |
| WiFi water quality monitoring | Real-time alarm function | Starting from ￥599 |
| Electronic titration pump | Accurate addition of pharmaceuticals | Starting from ￥450 |
Through scientific water change management, the water quality can be kept clean and the filtration system stable. It is recommended to formulate a personalized maintenance plan based on your own fish tank conditions and refer to the data and methods provided in this article.
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