I can't really select a voting option.
UV can be beneficial, but in saying that it can also hurt a system.
Beneficial could be if you have ICH, or if you have alot of algae in your water column. Then UV can help to remove this
BUT....
Detrimental is when you are using Zeovit, or any other bacteria based system to create a ULNS (Ultra Low Nutrient System), then you cannot use UV, as it will kill this system.
So it will all depend on what you are going to do with your tank.
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Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite)
Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker
Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO)
Type of Aquarium: mixed reef (SPS & LPS) with fish
Dosing: Mg, Ca, Alk
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