Review on 🐠 Optimized Fluval U Series Underwater Filter for Aquariums by Ruth Reyes

I purchased this item because I was struggling with my cascade canister filter. My first impression is that it is very durable, but at the same time it is absolutely silent. It's unlike anything I've ever had. A test was done with just my new submersible filter and then with a cascade canister. The cascade actually degrades my water quality even though it had built in or new media. I've added many different filters to the cascade over the years, but no matter what I did, there was still a lot of cloudy, muddy green water in it - no chemicals helped either. I'll end up just buying another submersible filter and staying away from canister filters. Update: I threw away my canister filter and only use the submersible filter, it's much better.