I agree. I've never found the need for more than 2 baffles. One siliconed on three sides (including the bottom) to create the right water level height for the skimmer "box", and a second slightly raised to separate the middle refugium and the end return pump sections. Each baffle I get cut to the ideal skimmer water level height so if the skimmer works best in 9" of water, that's how tall I cut the baffles. The second raised baffle also acts to trap microbubbles.
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