Pawfly Internal Aquarium Filter, Submersible Power Filter with 55 GPH Water Pump for 3 to 10 Gallon Fish Tanks Filtration Circulation and Oxygenation

I initially got this for a small 5 gal hospital tank but had to use it in a 6.7 gal betta tank instead because the filter I had in there died. It works quite well. I cut some of the sponge to make room for carbon and cotton or whatever that white fluffy stuff is. With just one betta and plants the water stays clean with regular water changes. I'm keeping that one in there and will get another for the 5 gal.Adjusting the internal outflow is a little difficult as others have mentioned but for the price it's a good filter for a small tank. I may try the spray but as also mentioned by others. It can also be a little tricky getting the 2 pieces connected properly after removing for cleaning but I found that to be true with other internal filters as well. This one is actually the easiest of them all.

At first I loved how well it worked & how easy it was to setup. The suction power was alright. Very easy to clean. However, it started to get loud. Extremely loud. I stopped using it.

I was really confused by the mixed reviews and decided to just bite the bullet and buy the Pawfly Aquarium Filter and decide for myself.Once I received my filter, I almost immediately realized the reason for the negative reviews: NO INSTRUCTIONS INCLUDED WITH PACKAGE!Once I realized this, INSTEAD of RETURNING THE ITEM.... I came back to this page, and READ THE INSTRUCTIONS!After that, it was easy-peasy!ALL THE PIECES FIT PROPERLY and interconnected with one another.My ONLY CONCERN, initially, was I did NOT want to tug too roughly on what could potentially NOT BE a "removable" part. I wanted to ensure I was removing the media cover in the correct place and understood how to tell if it was time to rinse it or not. Once I read the correct way to open the unit, check, clean/clear the media....this has to be THE BEST FILTER I OWN.....AND I OWN OR HAVE OWNED, SOME VERY EXPENSIVE FILTERS!I had a nitrate/nitrite issue, which seemed to repeat with every water change---super "white" cloudy water---within 3 days of cleaning both my outside Koi pond AND my indoor specialty tanks---ALL would be cloudy! NOT "dirty" but frustrating all the same.My local Aquarist Expert suggested an "All in One" treatment and told me to get a whole new filter, especially for the inside tanks--pronto. I told him the larger filter inside WAS "new", less than 3 weeks old! He said it was NOT doing its job on a 29 gal tank after I brought in water quality samples!!So, I ADDED this PAWFLY to my tank, as well. Within one day, the media needed to be cleaned----my Aquarist Expert was RIGHT! That big fancy filter which is supposed to clean a 60 gallon tank was mucking up the water and this PAWFLY was rinsed and I let it go another cycle, the same thing happened---it quickly became congested with aquarium "goo."On the third rinse of this new PAWFLY unit, my water is CRYSTAL CLEAR AND HAS BEEN FOR A WEEK SINCE IT WAS INSTALLED!I JUST came back to purchase TWO MORE; one for my 20gal, as well as a bigger one for my Koi Pond and thought I'd leave my honest review, too!Hope this helps someone!

The media could not be loaded. I bought this to get water flowing on the left side of my turtle tank, it works well but I thought it came with bio balls inside however it only had black mesh filter inside, I cut some of the filter mesh that they had and put some bio balls inside. So far it’s working well.

it will stop run after 2 months not very durable this is my 2nd one.

works well, and it’s not loud.it doesn’t come with instructions but you don’t need any if you have common sense

Good little pump I wish that things snapped together a little bit easier, but in the end, it works really well

Terrible product. It is quiet but it doesn’t work well. When you go to turn it off to clean it all the stuff goes back into the water so it doesn’t even get anything cleaned.