On my 40 breeder I always have the powerhead pointing up at an angle. It creates lots of surface agitation that helps to get more oxygen into the water. On my large tank my skimmer is plumbed to draw fresh oxygen from outside.
The only pic I have on my phone right now but if you could see a video the water flow is very strong at the surface.
The only pic I have on my phone right now but if you could see a video the water flow is very strong at the surface.
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