Solutions for a Cloudy Turtle Tank

Turtles defecate in the water of their tank, making keeping it clear a challenge. This is a guide about solutions for a cloudy turtle tank.


June 10, 2013 Flag
1 found this helpful

I persistently have a problem with the water in my turtle tank being cloudy. It's about 150 gallons and I have four 2inch wide red ear sliders. I put zoo med Reptisafe in the water daily as well as exo biotine. I have two filters as well. I clean up any uneaten food and my water is still foggy! What should I do?

By Bell

February 12, 20150 found this helpful

Try a UV sterilizer.

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February 12, 20150 found this helpful

Try a UV sterilizer

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October 8, 20160 found this helpful

Hi i have a female red eared slider who is about 5 inches and in a 55 gallon tank. I have a filter and clean out any excess food and waste. I also do half water changes weekly. Why is my water still look so cloudy

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October 26, 20160 found this helpful

Problem with constently cloudy water .1 turtle in 40 gallon tank

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Anonymous Flag
October 27, 20160 found this helpful

August 19, 2010 Flag
0 found this helpful

My turtle's water is very cloudy (to the point of not being able to see him though the water) and stinks very badly! I am changing the water every single say and have a very good (and expensive) filter. What is causing the cloudiness and what do I do to stop it?


By Bryan from Vancouver, BC

Answer This QuestionWas this helpful?Helpful? Yes
August 20, 20100 found this helpful

Are there rocks, pebbles, etc on the floor of the tank? Turtle tanks do tend to get much smellier than regular fish tanks. We used to keep alligator snapping turtles that the kids would find, until they got too big for me to clean the tanks out safely, then we would return them to the creek behind our house.

Check out the site below:

This is what I consulted while we had the turtles, and it was a lot of help.

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September 27, 20101 found this helpful

I have two Red Eared slider turtles, and I had to learn the hard way too, but now my tank stays clear. Here's what works for me: I bought a very large tank (55 gallon) and I use two filters; I use "Prime" (purchased from Pet Smart for about $6) to remove the chlorine and keep water clear. It is safe for fresh and salt water, and it only takes about 1/2 a cap full every time I change the water (about once every other week); Don't overfeed, this creates unnecessary waste; to keep the white buildup off the inside glass, I use a 50/50 mixture of water/white vinegar in a spray bottle every few days. The vinegar smell goes away as soon as it dries; You will have to remove the rocks about once every couple of weeks as well and clean them with bleach and water. Make sure you rinse the bleach off really well before returning to tank. If you can commit to spending about an hour every two weeks to thoroughly clean the tank, you will be amazed at the difference. Good luck!

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November 19, 20101 found this helpful

I have had my Red Ear Slider for about 9 years. I have 125 gallon tank for him. I also worked at a pet store for a few years. Cloudiness is usually caused by a build up of ammonia in the water. You might have spent a lot of money on a filter but it could be a crap filter if it doesn't have the right media in it. For turtles you need a carbon zeolite mix (it is black and white).

Keeping rocks in your tank can help but makes sure you don't buy aquarium gravel that your turtle can swallow. Also there is a product called Zoo Med ReptiSafe Conditioner it is blue; I would use this as a water conditioner.

Let me know if you have any other questions about your turtle or filter

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Anonymous Flag
December 16, 20150 found this helpful

I have two small red ear sliders ,,I had same problem with cloudy tank ,until I started feeding them in seperate container leaving them in that water for awhile than they go to the bathroom in that container and the ammonia from them going to bathroom doesn't cloud their tank

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Anonymous Flag
December 16, 20150 found this helpful
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