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Why Is My Aquarium Water Cloudy?

Causes:

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Bacterial blossom - As the new aquarium goes through the initial break-in

cycle, the water can become cloudy or at least a little hazy. It might take several

weeks to establish beneﬁcial bacterial colonies that are able to clear waste from

the water. Over time, that cloudiness will resolve itself. Decaying plants or

excess food that remains uneaten can also cause the cloudy water seen in

bacterial bloom. Keep the aquarium clean by removing any decaying plants

and uneaten food, vacuuming the gravel regularly, and performing partial water

changes. It is also a good idea to invest in a UV steriliser, which simply kills the

microorganisms creating the cloudy aquarium water problem and helps to

control algae issues.

Gravel residue - If the water is cloudy immediately or within an hour o r two of ﬁlling

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the tank, it's probably due to insuﬃciently washed gravel. Drain the tank and

rinse the gravel until the water runs clear. That should resolve the problem.

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Dissolved constituents - if washing the gravel doesn't solve the problem, the

next most likely cause of cloudy water in a newly ﬁlled tank is a high level of

dissolved constituents, such as phosphates, silicates, or heavy metals. If you

test the water, you'll likely ﬁnd that the pH is high (alkaline). In these cases, treating

the water with conditioners will often resolve the problem.

Other things to try:

Reduce feeding. Overfeeding introduces a lot of organic waste and i s one of the

main causes for cloudy water problems.

Do not perform large water changes as they can severely aﬀect the balance of

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the aquarium leading to a further deterioration of the water quality.

A severely overstocked aquarium will result in excess waste so consider your ﬁsh

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population. We recommend to not exceed 1 inch of ﬁsh per 3.7 litres of aquarium

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water.

Why Is My Aquarium Water Green?

Causes:



Too much light - Reduce the amount of time the lights are on, and move the

aquarium to a location out of direct sunlight. This will reduce the

photosynthesis that allows the algae to grow.

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