Hi everyone, I have a 4 foot long 300 litre aquarium, I have one power head on the left hand side of my tank in the upper portion towards the top aimed at the front glass, and two on the right side aimed to left hand side, it seems to be swirling to the middle so not sure if everything is getting to my skimmer on the left, should I take the one on left out to create a better flow towards the skimmer? Sorry I can't get any pics as my camera is broken. Any advice will be greatly appreciated. Thanks
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