lectraplayer
Aquarium Advice FINatic
- Joined
- Feb 17, 2014
- Messages
- 574
Has anybody given thought to how well a HOB filter works (such as oxygenation) when covered vs. uncovered? I'm thinking I would get more air from an uncovered HOB but by how much?
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Sent from my ALCATEL ONE TOUCH Fierce using Tapatalk