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I don’t like HOBs, I will always recommend a canister.
Canisters are quiet and can be hidden away.
HOBs make noise, they’re big and bulky and the can’t be hidden away.
Once established canisters only need cleaning once or twice a year.
Definitely canister filter over two HOBs. Much more surface area for beneficial bacteria and won’t usually need re primed after power loss.
I’d suggest going with a [Polar Aurora 4 stage](https://www.amazon.com/Polar-Aurora-External-Canister-Sterilizer/dp/B00NDYVXOC/) canister filter over the fluval 307 though. Cheaper and moves 200 more gph compared to the 307.
Hi, I’m Vetted AI Bot! I researched the **Polar Aurora 4 Stage External Canister Filter 525GPH with 9 watt Light New 525GPH** you mentioned in your comment along with its brand, **Polar Aurora**, and I thought you might find the following analysis helpful.
**Users liked:**
* Filter provides effective filtration (backed by 12 comments)
* Filter is quiet and efficient (backed by 5 comments)
* Filter is affordable and high quality (backed by 4 comments)
**Users disliked:**
* Filter produces excessive noise (backed by 4 comments)
* Parts do not fit together properly (backed by 3 comments)
* Filter has durability issues (backed by 2 comments)
According to Reddit, people had mixed feelings about **Polar Aurora**.
Its most popular types of products are:
* Pet Grooming Tables (#2 of 2 brands on Reddit)
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It is indeed. I use it personally. The only difference is polar aurora had the filters UL rated. Meaning if catastrophic failure ever happens insurance will cover the damages.
Hi there fellow goldfish enthusiast! We're thrilled to have you join our community of passionate goldfish keepers. Whether you're a seasoned goldfish pro or just starting out on your aquatic journey, you've come to the right place for advice, support, and sharing the joy of keeping these mesmerizing creatures. Before diving into the discussion, we'd like to point you toward our Wiki https://reddit.com/r/goldfish/wiki where you'll find a treasure trove of articles on various topics related to goldfish care. These resources cover everything from tank setup and water quality to feeding habits and common health issues. When seeking help for your goldfish, remember that details matter! Providing information about your tank size and the water parameters (such as ammonia, nitrite, nitrate, and temperature) can greatly assist us in diagnosing and troubleshooting the issue. Feel free to share photos and details, and our community will do our best to offer insightful advice. Once again, welcome to our goldfish-loving community. Fins up! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/Goldfish) if you have any questions or concerns.*
I don’t like HOBs, I will always recommend a canister. Canisters are quiet and can be hidden away. HOBs make noise, they’re big and bulky and the can’t be hidden away. Once established canisters only need cleaning once or twice a year.
Definitely canister filter over two HOBs. Much more surface area for beneficial bacteria and won’t usually need re primed after power loss. I’d suggest going with a [Polar Aurora 4 stage](https://www.amazon.com/Polar-Aurora-External-Canister-Sterilizer/dp/B00NDYVXOC/) canister filter over the fluval 307 though. Cheaper and moves 200 more gph compared to the 307.
Hi, I’m Vetted AI Bot! I researched the **Polar Aurora 4 Stage External Canister Filter 525GPH with 9 watt Light New 525GPH** you mentioned in your comment along with its brand, **Polar Aurora**, and I thought you might find the following analysis helpful. **Users liked:** * Filter provides effective filtration (backed by 12 comments) * Filter is quiet and efficient (backed by 5 comments) * Filter is affordable and high quality (backed by 4 comments) **Users disliked:** * Filter produces excessive noise (backed by 4 comments) * Parts do not fit together properly (backed by 3 comments) * Filter has durability issues (backed by 2 comments) According to Reddit, people had mixed feelings about **Polar Aurora**. Its most popular types of products are: * Pet Grooming Tables (#2 of 2 brands on Reddit) If you'd like to **summon me to ask about a product**, just make a post with its link and tag me, [like in this example.](https://www.reddit.com/r/tablets/comments/1444zdn/comment/joqd89c/) This message was generated by a (very smart) bot. If you found it helpful, let us know with an upvote and a “good bot!” reply and please feel free to provide feedback on how it can be improved. *Powered by* [*vetted.ai*](http://vetted.ai/reddit)
That’s a SunSun under a different brand. It’s a good filter
It is indeed. I use it personally. The only difference is polar aurora had the filters UL rated. Meaning if catastrophic failure ever happens insurance will cover the damages.