Keeping your aquarium water clean is an important first step in keeping your aquarium healthy. A dirty aquarium can quickly become a haven for algae growth, and this will inevitably lead to the demise of your fish.
There are several types of aquarium filters available on the market today, but no matter which type you decide on, they all do essentially the same thing – remove waste from the water and help keep the gravel clean. Most filters use mechanical filtration and chemical filtration to clean the water, and there are also live rock filters that use biological filtration as well.
The most common type of filter is the hang-on-back (HOB) filter. This type of aquarium filter is essentially a box that has an intake tube on one end and an output tube on the other. The intake tube hooks to the outside of the tank near the waterline, while the output tube attaches to an aquarium hose which can be connected directly to a faucet or powerhead. These filters also come with cartridges that are changed periodically. Most HOB filters are designed for freshwater fish and not saltwater tanks.
The other type of filter that is commonly used in freshwater and saltwater aquariums is the canister filter. These filters are relatively large, usually taking up a lot of space on the floor or back wall of an aquarium. They also often have to be plumbed directly into your water line and then attached to an external pump. This type of filter is very popular though because it generally has a large amount of surface area for biological filtration, and this helps keep the water healthy.
The final type of aquarium filter is the internal or pump-in filter. These filters usually come in HOB or canister form as well, but they are smaller than their counterparts and are built directly into an aquarium. The pump-in filter is also usually meant to be used with saltwater aquariums.
No matter what kind of filter you use, it’s important to remember that the water will only stay clean if you change or replace the filters on a regular basis. If you neglect your aquarium filtration system, this can cause serious problems for the fish in the tank.
A great example of this happened recently at an aquarium in Madrid, Spain. The staff had neglected to change the filters on their reef tank and soon discovered that 70 fish had died because of nitrate levels as high as 1,500 ppm .
So whether you use a canister filter or hang-on back filter, it doesn’t matter. What matters is that you keep the water clean for the health of your fish; otherwise, these hardy creatures will not live very long inside an aquarium.
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