Keeps your tank cystal clear and you can rinse it and use it again couple times or more depending how you feed your fish and how many fish you have it Always had good results with marineland products try offmarket brands and they didnot work good and keep your tank clean and health
Verified purchase: Yes | Condition: New
I have been a tropical fish hobbyist and breeder since 1959. I have used dozens of tank filter systems. The Marineland outside filters are always excellent and easy to work with and last "forever". Their cartridges are of excellent quality. The after market substitutes are not worth buying.
Verified purchase: Yes | Condition: New
I have used these cartridges for at least 10 years. They can vary in price but wait for the sales and free shipping. Then they are an excellent value
Verified purchase: Yes | Condition: New
I'm just glad I can still buy these. I have an old emperor. The new ones look super Chinese-y. The filters, though, have stayed the same.
Verified purchase: Yes | Condition: New
Works well to filter water
Verified purchase: Yes | Condition: New
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