My RS-135 on my 90g/29g sump setup works well, but if I had to do it over again I would have went with one of the smaller skimmers w/ 3500 pump. The skimmer's Sedra 5000 is the only audible part of my system.
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90g reef/29g sump, DIY cabinet, 2x250w MH, 2x54w T5 actinics, ER RS135 skimmer, VorTech pump, 18w UV sterilizer
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