I have the Vertex you linked to. 2 years now, never had a problem. It has a booster pump (so I get 1:1 good water to waste water ratio) and a built-in backflush system as well as a built-in TDS meter.
Good bang for the buck.
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-Mark
29 Gal Bowfront w/24" LED Lights. DIY HOB Sump (5.4 Gal) MP40. Orange Spotted Watchman Goby, 2 Clownfish and a few hermits.
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