The latest in CO2 regulator technology ;)
https://www.aquariumplants.com/ProductDetails.asp?ProductCode=Co2-2
there is diy tutorial online somewhere on how to build something like that. i will look it up and post it here.
Sounds to good to be true. This is the same ify plant shipping company right? But the sales price is not to bad. I read a thread where someone could even get plants replaced that they did not ship or for dead ones which most were. So how would you get your warranty? Just like in new computer technology I always weight for others to work out the bugs.