Rated 2.8 out of 5 by 23
Rated 4 out of 5 by ally22202 Good filter, needs a couple improvements
Overall I am pretty happy with this product, I use it in my 10 gallon Betta tank to keep the water oxygenated and clean without too heavy of a water flow. My only problem with this filter is that I had to attach suction cups to it because the clip did not work on my tank. I suggest a change in design or the inclusion of suction cups in the box. Good value for the money.
August 12, 2016
Rated 1 out of 5 by Mromero Don't waste your time or money
The pump is noisy, the clip doesn't fit over the side of tank, the pegs are too small for suction cups.Aarrgg.
June 9, 2016
Rated 5 out of 5 by Girly Best filter ever!
I run quite a few smaller tanks in my life and this filter is by far my favorite. Over the HOBs, under gravels, canisters, I love these. I currently have 3 of the 3i's running and will be getting more. Setup is flawless and essentially set up the same as a basic sponge filter. Will never break that I can see, no power from the filter itself, just the air pumps. And hey, yeah, they break. No biggie. Have my own filter media setup with filter floss and matrix and am in love. Have a 10i that just came with a kit I am concerned about, being it is run by power and not air supply, so could have pieces break. But we'll see. I intend on running multiples of the 3is in most of my tanks shortly. Quiet, clean, flawless. Get a check valve for each one, and airline connectors to run more than one per pump. Easy setup and will not be buying any other type filter for any of my tanks. I love these. Crystal clear and do the job. RINSE MEDIA WEEKLY IN CHANGE WATER. This will help troubleshoot many issues people seem to have. And also cheap purchase to get an air control valve for the ones who need *less* flow in the tank (I.e bettas). Easy fix.
June 5, 2016
Rated 1 out of 5 by CCSP Sorry to say
That after 2 weeks, it doesn't work really. It seemed to work well at first. Now, the flow is terrible, sometimes nonexistent, even after cleaning. I think I may return it. But, the reviews of the other small filters aren't much better, so I'm not sure what to do.
May 22, 2016