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I have a 75G FOWLR and I recently came across a good deal for an UV that’s rated up to 250g. The UV is coralife turbo twist 6x (18w). Question is if it’s safe to use it on a 75g. My concerns are 1) is it too powerful and it harms too much of the free floating denitrifying bacteria & 2) will it cause a heating issue. Thanks.