after performing a full water test on the water "cycling" in your tank. If you do not have a water test kit then scoop up a cup of water from your tank and take it to a local fish store (LFS) and they will gladly test the water for you and sell you fish as well as long as the water checks out!
Fish Tank Filter Setup Conclusion
As you can see, installing a tank filter is simple and you can do it all by yourself. In some cases, you may need help from a friend or a YouTube. This is especially important if you are planning to install a specific filter.