Top Fin Тор Fіn Fіsh Тank Еlеmеnt Fіltег Сaгbоn Сaгtгіdgеs ЕF-S 6 Моnth Suррlу 2.1 х 3.7

Very effective filter cartridges.

These are cheaper than in the stores, same exact quality and free shipping. How can I go wrong. Very happy.

Expensive!!! Don’t filter worth a crap!! Have to be changed too often! Will never buy this type of filter again!! Fully plan on changing filter in our current tank as soon as these filters are used up!

Fit perfectly in my little hexagonal 3-gallon tank.

Not sure if it keeps water any cleaner. Make sure you find the right size filter for the tank you have.

It is opuso expenses if you go to pet smart you can get it for 12 months and it will only cost 14 dollars