How To Change Fish Water Tank


How To Change Fish Water Tank

It is very crucial to the survival and health of your aquatic life to change the water in your aquarium every week.  It is actually a very easy task that should not take more than half an hour as long as you’re prepared for it and have the necessary tools.


Why Is A Water Change Necessary?

A fish tank is an enclosed ecosystem. Each day, just like all other life forms, fish will produce waste. It is easy to notice feces floating in the water but fish also release urine which is not noticeable. These waste products dissolve into the water that the fish live in and while the filter does help remove some of these, there are still traces of waste that is not removed from the water.

Furthermore, there are also other elements that contribute to the pollution of the water such as excess food, decaying plants, accidental contamination by clumsy human hands and sadly the occasional dead fish. All these elements contribute chemicals that create toxic levels that at first might seem minimal but without topping off the new water, will eventually increase in potency and affect the aquatic life.

how to clean fish water
how to clean fish water

A lot of fish enthusiasts argue that fish tank plants effectively remove any traces of waste from the aquarium but you need to realize that plants are also a form of life and they only consume certain elements, but there are byproducts of waste that will even harm them.

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No matter how great you feel your filter may be nothing beats a water change to restore the fish tank back to livable conditions. Imagine the difference for you if you were placed in an enclosed room with conditioned air but no windows and a room with a window that allows fresh air in. Which would you prefer?

How To Change Fish Water Tank

You should not change more than 20% of the total water volume each week.  Changing more will disrupt the delicate pH and temperature balance in your tank.  But this is only true if you have a medium to a large aquarium, a smaller aquarium of fishbowl will require up to 50% water change.

  • The first thing to do is to prepare for the water change.  The day before, allow a bucket of water to sit for twenty-four hours or more to allow the chlorine to dissolve.  Never dump in tap water directly into the fish tank because the chlorine will kill off important beneficial bacteria colonies in your fish tank.
  • The best way to remove the water is by using a low suction siphon.  You have a choice of either buying an aquarium vacuum from the Recommended Products List below or you could even use a normal rubber hose as a siphon.  While sucking out the water, bringing the hose inlet over the gravel, plants and tank decoration to suck up larger waste as well.  This is especially important if you are using an Undergravel Filter.
  • You can use the water that you siphoned out to wash your filter media and tank decoration in.  Filter media and tank decoration will have colonies of bacteria on them too and wash them in tap water will just destroy these colonies which is something you don’t want to do.
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There is no right or wrong way to pour in the water, just don’t dump it all in roughly and scare the fish.  Be gently when pouring it in.

After Changing The Water

For the next couple of hours, check the pH and temperature levels of the water from time to time to make sure that it does not alter drastically. That completes your water change.  It’s simple yet important and should not take up too much of your time.  Done consistently and well, it will ensure that your fish live long and prosper.


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