Review on 🐧 Optimized Penguin Power Filter Rite-Size Cartridge by Marineland by Daphne Henry

I just crucified competitor filter cartridges in a review so call me a little insightful. Marineland filter cartridges are a breath of fresh air after my first experience with competing products. After my bad experience with someone else's 50-gallon version in the back, I was exhausted and used a canister filter all the way. My wife had several growing goldfish that I converted into a 20 gallon aquarium which led me to purchase a Marineland 75 gallon penguin filter. I put this thing in a 20 gallon tank and was still wondering if it would do the job and lo and behold it worked great, the water cleared quickly and the filter cartridges lasted 3-6 weeks (sometimes have we algae in our aquarium with goldfish, which is not due to the filters) as opposed to 3-6 days that we are used to before. About 8 months later my wife's goldfish migrated to my 54 gallon corner tank and I moved seabed with them through the rear filter. It performed excellently in a large tank without much change in cartridge durability. The water stays nice and clear except for the strange bloom of algae. I have to switch to a canister to save space (I can't cap my corner tank with a large check valve), but I am 100% confident in the effectiveness of Marineland's filter cartridges. Marineland has proven itself. To be most effective compared to the back filter I've used with this type of cartridge, add in the availability of the unit and cartridges and this is a great system for those who need a back filter.