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These filters are made for bigger amounts of water and they create strong pressure so you’ll probably avoid clogging.

The bigger the filter, the better the chances are you’re going to get rid of all the waste. The biggest ones are external filters and they are usually close to the pond or partially buried. This filter works using the technique of drains – filling the inside of the filter which is made out of chambers and then emptying it, so the water that comes out has been cleaned. There’s also the option of using media and combining several different types that brings us closer to perfectly healthy water. Their disadvantages are connected to its size – it’s hard to move them and hide them.

When you’re buying the new pond filter, it’s important to pay attention on the pump – they must be compatible, and the size of the filter must be proportional to the pond – if the filter is too small it’ll have no effect on the water because it won’t be able to clean it fully.

underwater lights

Underwater lights

Indoors or out, ponds are not complete if they’re not illuminated. Interestingly, this luxury isn’t expensive and it’s long-lasting. Pond lights move from ten to twenty volts, so they don’t use up a lot of power. Usually, these lights are used with clear lenses, but if you prefer color – there’s lot to choose from. The bulbs that underwater lights use are halogen or LED bulbs. The halogen ones last from a year to two years and they are too hot to touch. The LED bulbs last much longer, they save more energy, you will not burn yourself if you touch them and they are cost-effective.

Pond heaters

A large number of fish is used to a temperature between twenty-two and thirty degrees. To make sure your fish are safe and sound, you should adjust the water temperature to their natural one. So, depending on a fish, whether you have a freshwater type or tropical one – you will need to provide a comfortable environment. The heaters can be:

  • Glass immersion heaters

  • Under-gravel heaters

  • Under-tank heaters

The first group of heaters is at the same time Filters are one of the most important parts of a fish tank that help create a natural environment for the amazing water creatures that you decide to keep. They help clean the fish tank by taking care of a fish waste that may be dangerous if not cleaned in time. Then, they protect the pump for ruins and other forms of waste, or anything that can hurt the pump and cause some kind of damage. The tank filters trap the unnecessary particles that may be found in the water. Also, they remove other kinds of waste that can accidently reach the pond. Amongst all this, filters regulate the growth of algae, so it wouldn’t overgrow the tank by removing nutrients that algae feed on.

But, don’t be fooled – the pond filter can’t do all the cleaning. You need to change the water occasionally and be careful about neglecting your fish pond.

Anyway, there’re a couple of different types of filters:

  • Intake filters

  • Submersed filters

  • In-line filters

  • External filters

If you want to achieve a better effect, you may use some filter combined with another, which will definitely improve the life of your fish-pet.


Intake filters have the smallest effect on water of all. This filter is used to guard the pump and it usually comes with it. It should be among your aquatics, but it is not enough – you’ll just have a safe pump. This filter keeps it safe by preventing unwanted particles from entering and disturbing the pump. It’s firmly attached to the pump, it’s easy to clean, and it’s very affordable. But, it’s important to maintain it – it’s easy for this small filter to get jammed or clogged, and it must be cleaned at least once in every twenty-four hours.

Submersed filters are larger and more effective than intake filters. They can be installed on both sides – outside of the pond and inside. This filter is easier to take care of because it’s not necessary to clean it on a daily basis and you are free to let it make your pond healthier for a few days on its own and then clean it. There’s an option of adding additional media to it and improving its functionality by adding it the ability to filtrate mechanical, plastic, biological or chemical articles. Also, removing a submersed filter of a pump is easy, but be careful and pay attention while doing so because there’s a chance of spilling all the waste back into the tank.

In-line filters are very useful because they too are capable of making sure that there’s no mechanical, plastic, biological or chemical waste by adding a different type of media. Usually, they are installed inside of the tank. The best thing about this kind of filters is that you may allow for even weeks to pass and then clean it. But, in-line filters are intended for wide tanks – keeping them in narrow tanks makes cleaning harder because it’s complicated to get them in and out of the tank. the most used one. The heater is lowered into the tank so it can regulate the water temperature by touching it. The heater usually contains a thermostat that can detect if the temperature is below or over the wanted one. If the light on the heater is on, it means that it’s adjusting and working on the water in a pond.

Under-gravel heaters use just a cable that is put into the water, below the sand or the gravel. In most cases, the dry side of the cable is the one with adjustable buttons. This kind of heater is best for the ponds that are loaded with plants, and it’s the most efficient in these conditions.

The last kind of heater is used for smaller tanks. It has a heating panel that is placed under the tank. These heaters are avoided because glass is not a great conductor – that increases the power bills and makes them inefficient.

All in all, I hope that you found this article to be of use. I advise you to continue on researching about pond accessories and more,  since there is no such thing as too much info.