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Originally Posted by Werbo

Best in the world (as stated on their website)

http://www.aquariumplants.com/Carbon...ator_p/co2.htm

Never used it but when I was researching the one above kept getting good reviews ($300 reg better be good).

I have gotten fed up with normal regulators going out of whack. They could not maintain a constant bubble count. I first got one of the aquariumplants regulators on one of my plant tanks. Now I have 2 of them on plant tanks and one on my calcium reactor. When you look at all the costs involved they are not expensive.