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Marineland Rite-size Ready-to-use Cartridge For Penguin 160/170 & 300/330
Reader's Reviews (5)
posted 7 years ago
These are easy to change but if you have alot of waste going through the filter i wouldn't leave them in too long. If you wait till there clogged to change then they will be completly clogged and quite gross when you pull it out. But if you do regular maintenance you can rinse it off and put it back. But this can only be done once then it's time for a new one.
Pros: Traps all the yuck that goes through the filter
Cons: messy and slimy to change
2 of 2 people found this review helpful.
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