Marina (3 of Each) Slim Filter Carbon Plus Ceramic Cartridges and Zeolite Plus Ceramic Cartridges

Excelente

Really love this filter for my betta on my 5.5 tank. Runs very silent!

work great

Filters dont last long

Super crystal clear water when I use one of each. Never have any issues with the water quality in my fish tank.

Everything was fabulous

Kept my tank clean for 2 months without changing the filters

Easy to install

I remember when you had to rinse and measure out nasty little bits of charcoal, fluff out and place the angel hair stuff and stick your hand into the tank to put it all together again. Especially compared that that, these rock. A 5-year old could do these. I will never, ever buy a system that doesnt have this sort of practicality built-in. Get them. You will like them..... so will your fish.

Refills for the slim 20 filter, new set up and the 4 filters seem very efficient, fast water clearing and now maintaining a good water quality. Very satisfied. Nice to get an very quick and early delivery. Thanks.