I bought this to use in my ZooMed submersible filter. I was able to open the bag and use only a small portion of this charcoal at a time. Works great!

Used these in our new canister filter; it’s been a couple weeks with no issues and everything is working how it should.

Really easy to set up! It’s a very quiet filter. The fully submersible feature is great when trying to rearrange objects in your tank. Keeps tank pretty clean.

So for a couple of weeks my water wouldn’t stop becoming super dirty. I would change the charcoal every 3 months if you have multiple turtles. Now we have clear water and three happy turtles!!

I still have my first filter from a couple years ago. Still works perfectly

I have two Red-Eared Sliders and they can produce quite a bit of waste, but the filter is great and powerful enough for the 20 gallons they swim in. I do recommend however, some sort of air pump/bubbles to help with water circulation if your tank is large (mine is a 40 gallon tank.) The filter media though is affordable enough to simply replace it after a while instead of trying to wash it all over and over again.

i have an aquatic turtle that i inherited 4 years ago when my daughter moved out. we've tried other filters but they were inside the tank and the turtle kept knocking them off. we haven't had any problems with this system....it's what works best for me!