API 720D First Impressions
In one day crystal clear.
The bacteria eats the nitrates in the water to help keep it clean. I DONT KNOW WHY MANY THINK THIS IS A NOISY FILTER. This filter has is a very simple and efficient design. Overall I would recommend this item. Basically, make sure everything that is suppose to spin, does so smoothly. You CAN rinse the old ones in an emergency. I was worried that it might be too much for my aquarium or that it would be loud.
- Editor's Impressions Of The API 720D
- Filter Effectiveness [star rating='5']
- Build Quality [star rating='3.7']
- Value For Money [star rating='4.4']
- Feature Set [star rating='4.9']
API 720D Final Thoughts
Like brand new.
The filter stopped working all of a sudden. I plan to cycle this new AC 50 on a separate tank and then xfer it to the 20 gallon. I attempted to clean and lube the impeller, but to no avail. Overall, I like the 350's slim back design, and be able to add up to 4 cartridges. It wasn't producing much surface agitation. It wasn't producing much surface agitation. So, easy is good, both for us and our fish.
Overall Score
4.4
(758 Points)

- API 720D Features & Specs
- Contains one (1) API FILSTAR XP QUICK DISCONNECT Aquarium Canister Filter Spare Part 1-Count
- Replacement quick disconnect for API FILSTAR XP S, M, L, XL (or RENA FILSTAR xP1, xP2, xP3, and xP4) canister filters
- Includes one quick disconnect with O rings.
- Manufacture: Mars Fishcare Inc.
- Product Dimensions: 8.13 x 2.25 x 8 inches; 2.4 Ounces
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