Marina 13315 First Impressions
Bigger than expected.
It's a pain in the butt to put together the directions don’t do it that well. But a small simple rubber band fixed the issue quickly. I will keep using these and recommend them to anyone. Just be careful punching out the plastic. I will update more pictures later, once the water isnt cloudy. But if you don't weekly vacuum it up, it will eventually clog the filter. Particles fall off into the aquarium when you take them off to clean them.
- Editor's Impressions Of The Marina 13315
- Build Quality [star rating='5']
- Value For Money [star rating='4.4']
- Feature Set [star rating='4.1']
Marina 13315 Final Thoughts
Easy install.
Luckily I'm using powerheads and the weight of it helps hold it in place. I have been using an Aquaclear 50 on a 20g long planted tank. The first piece does get a bit dirty and usually only lasts a week. But by two weeks, the output did drop. These have prevented my original problem. I've definitely noticed a difference in my water quality. It's also a pretty substantial roll.
Overall Score
4.6
(1280 Points)

- Marina 13315 Features & Specs
- For use with all Marina 3.7 L (1 US gal) Aquarium, including Marina pirate Aquarium kit (13310) and Marina mermaid Aquarium kit (13311).
- Improves water clarity and Color.
- Removes pollutants and odors.
- Country of Origin: CHINA
- For use with all Marina 3.7 L (1 US Gal) Aquarium, including Marina Pirate Aquarium Kit (13310) and Marina Mermaid Aquarium Kit (13311).
- Improves water clarity and color.
- Removes pollutants and odors.
- Manufacture: Rolf C. Hagen (USA) Corp
- Product Dimensions: 1.5 x 3 x 7 inches; 0.81 Ounces
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