An aquarium filter aims to cleanse the water, ensuring that fishes inside have excellent water to swim with. The absence of it might contaminate the water due to their waste not being filtered inside. So basically, it is essential to obtain this little help. 

According to, a clean tank is essential to the residents of the aquarium. As it does not just promote aesthetic looks, but it also keeps them safe. But do you know when a filter is already used up? 

This article concerns the common issues an aquarium filter faces. So let us dig into them and have an incredible tank!

Why Proper Filtration is important

The Aquarium Filter’s role is to clean up the water and ensure that the water value stays in a normal range. Without it, the water will generally drop in value. If that happens, the fish inside will be susceptible to water poisoning and stress. If that happens, they will die eventually. Also, algae build-up will be very evident, making it hard to clean the tanks. 

Also, the filter generates proper oxygenation in the tank. We humans get our oxygen from the air. And we all know what will happen if our air gets polluted. There are diseases born by it, and sometimes it is hard to breathe. That goes the same with the fish. The only difference is that they get it from the water. 

And being out of their natural habitat, maintaining an environment close to it is sometimes hard without the right items. 

As tank owners, that is the least that we want to happen. But, unfortunately, the installation of water filters makes this scenario far from happening. So make sure that you know the common issues so you can fix them right away. 

Most Common Issues of tank filters

This section contains the common issue that you might come across when you have a tank filter. We include some information on how this might happen and what solution is possible to solve the causes. It consists of the following;

No Suction

The structure of most filters operates using a motor-operated impeller which creates the suction function. Therefore, it will not work unless it creates a suction. Sometimes, you will notice that your filter is working, but no water is drawn in the tank. If that is the scenario, there are two things that you need to check. 

You can check the filters if it is clogged. Sometimes, due to its hard work of filtering debris and waste, those clogged up the filters. They are usually stuck up in the filters as they cannot flush out entirely. Just clean it up, and you are all good to go. 

If it still doesn’t work, there might be a problem with the motor or the impeller itself. You will need to find a replacement or buy a new one in this case. Check the warranty as well if it might pass the requirements. 

It stopped working altogether.

One reason why appliances experience this kind of problem is because of a power surge. It happens when the electricity will cut out then turn back on again. What you can do here is to unplug it and then let it rest for a bit. Then, replug it, and if it does not work, have the motor checked by a professional. If the problem is the motor, you can try repairing and replacing it. But the cost is less when you purchase a new one. 

Too High or too low flow rate

The flow of the water is significant to consider when setting up your tank. You can’t just buy one from a store and install it. Each species of fish has its preference when it comes to water flows. For example, those from lakes and ponds prefer a slow-moving current, while those from the mountain prefer a stronger one. 

If you wish to make the current at a high pace, you can add a supplementing filter or change to a higher-powered filter. However, if you want to make the current one slower, you have no other choice but to purchase a new one.


Your tank filter plays a vital role in your fish aquariums. If you fail to understand how it works, it will fail to perform at its best. Don’t worry. It does not require an extreme level of maintenance. Just a little cleaning and regular monitoring will do. 

We hope that this section has been a big help to you. Refer to that issue that we have stated above to have stress-free aquarium maintenance.