I come across wrong all the time- no quarrel. Just see all these hard working dudes like you getting sucked into stuff. But hey its a free country full of capitalists of varying legitimacy. Finding out if vt-2 worked would be cake but guys pushing this stuff never do. All you gotta do is take split livewell boat and put vent in one side only. Could compare DO,temp, nh3, fish stress in each well at end of day- done. Im in healthcare and theres all sorts of total crap pushed at us daily. In our world its put up or get out. In fishing world its just find a bunch of schills to push it and who cares if it works.C.O.D. Jr. III