Hi Willow. I actually went with a version of Meleevs 'sump G' for external pump s. My refugium is not a square though. It angles on a 45 on the width part...trying to get as much room as I could in the refugium. My silicon job has something to be desired...man I suck at it! I like straight lines, not corners and nooks! Hey, It holds water. I am placing it in Sun AM.
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180g tank(6x2x2) w/170lbs LR, 2-250W 1-400W Halides, 2-3ft t5 Actinics,H&S 1260 200 Skimmer, 1-Tunze 6000stream w/controller, 1-6060stream, 70g sump, 30g refugium Neptune controller, Sequence Hammerhead inline return, Lifeguard 25W UV, 1-Tunze osmolator, 1-Tunze wavebox, 1/4Hp Pacific Coast chiller, MarineTech calcium reactor
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