Zilla Pet Turtle Miracle Ball, Odor and Sludge Remover, for Cleaner and Healthier Turtle Habitats and Aquariums, Treats up to 50 Gallons

Highly recommend! Worked perfect for my turtle tank when my filter quit working. Removed odor and sludge was reduced to an easy to remove glob. Tank was surprisingly clear with an hour or so.

My little turtle pond is black and stinks! I used 2 of these balls and they did absolutely nothing! Don't waste your money on this.

This was pretty amazing. The only complaint is it's a one shot thing.

This works so well for our turtle/fish tank. Turtles are very dirty and this clears the water up within 24hrs. Crystal clear for way over a month.

I honestly can't tell if this works well enough to justify using or not. I can't say that I noticed a significant difference so I probably won't use again.

Clean up is very easy because it cuts my time in half. I keep reordering because the smudgy water gets cleared up in a few hours. I'm happy with this product.

Not really sure this even did anything to our tank. First purchase was damaged in transit so I wasn’t surfeit worked properly. Ordered another but Water did not clear up and tank wasn’t any cleaner than before. Just a glob of clear liquid in a plastic cup.

The media could not be loaded. I love this it brings nitrates down and I can actually see the tiny white bugs eating the waste on the ground. These water bugs are very small but its so cool to be able to make my tank bioactive.