If the line ever leaked or broke the hoe tank would drain vs just the top part. I have a brother in law running his tank with a overflow and canister it takes quite a bit of evap before it runs dry.
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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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