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(More customer reviews)This product has had strangely mixed reviews, from exuberant to downright hate mail. I bought it because I thought that the other canister filter I was considering would be too powerful and would churn up the water too much for my small turtles.
When you test a filter, you can't just look at the water and say it works great; you have to test the water. Believe me, the turtles can tell the difference when there is a high ammonia content. You would too, if you were swimming in your own pee!
I've had this filter for 4 weeks. The first three weeks I could get no bio filtration at all, and the ammonia stayed at a high level. Then for the last week the filter has worked great and my ammonia is down at zero.
So I can highly recommend this product for a small tank normally used for baby turtles. What I do NOT recommend is the carbon inserts that go with the product! The insert is basically a disposable bag of activated carbon that is machined into smooth pellets. These pellets do a horrible job of absorbing the organics that they are supposed to control.
In the third week, I went to the aquarium store, bought a nylon bag, and filled it with over-the-counter activated carbon. These are basically raw chips of coal. The rough sides of the coal provide ample porous surface area for absorption. Also the activated carbon at the pet store comes a lot cheaper than the 501 carbon inserts.
You don't know clean water until you see the difference between the pellets and the activated carbon chips; you'll see the difference in just one day. But what's more important is that one week later, my ammonia is down to zero.
Turtles create a LOT of ammonia. With the right carbon, this filter will do the job. The proof is in the testing.
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Zoo Med 501 Turtle Canister FilterThe easy-priming Zoo Med 501 Turtle Canister Filter is small, convenient, and fits outside turtle tanks, vivariums, box turtle pools, and aquariums up to 30 gallons. Contains biological, chemical, and mechanical filtration. Clear viewing case lets you see when filter media needs to be replaced. Comes with 1-year warranty.
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