all depends what you are looking for in flow. If you just want to make natural waves like motion. then the wavebox is the way to go, But if you want flow and be able to control and have batt back up for those just in case elec failure , Then the vortech with batt backup is the way to go
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There are 3 ways of seeing things ~ 1st with the left eye , 2nd with the right eye and last with both eyes ~
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