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My new aquarium water is cloudy. Is this normal for a new tank?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male

I just got a new aquarium. I went step by step on how to set it all up. The tank has been set up since Saturday and now on Tuesday the water is cloudy. Did I do something wrong

1 Answer

Most Helpful Answer

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Answered By Miranda Sadar, DVM, DACZM

Veterinarian

Published on July 3rd, 2018

I would recommend checking your water quality first to evaluate your ammonia, nitrite, and nitrate levels. With new aquarium set ups, it is common to have issues with water quality as your bacterial populations are getting established. I am not sure if you have fish in your tank already or not, but if you do, please monitor them closely for signs of distress, as this can occur with elevated ammonia and nitrites. Signs to look for would be swimming very fast (hyperexcited state) and trying to jump out of the tank. I hope that gives you a place to start, and good luck!

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