I am also on the same page as whatcaneyedo, I built a exhaust fan directly outside from my canopy.
Can you get glass tops for your tank and cover your sump that would help a lot for evaporation.
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360 gallon sps reef, 180 gal sump, bubble king supermarine 300, 4xmp40Wes, 2 x 6215 tunze waveboxes, 4 ghl mitras
360 Reef Tank
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