Review on 🌱 ZRDR CO2 Generator System with Dual Gauge Display and Automatic Pressure Relief Valve 2L Carbon Dioxide Supply for Plants and Aquarium, Stable Output by Emily Wilson

Well this product does what it says on the tin but if you're going to use it in a grow tent you should know that the CO2 doesn't last long, especially if your tent is not 100% airtight. Any fans or exhaust systems will deplete the levels very quickly. I used the entire tank in one day trying to keep it in at least the 900-1200ppm range and it really never got to the recommended 1500ppm. This reservoir is quite difficult to control and finding out how many bubbles are per minute and the size of the bubbles is very difficult. There have been times when I've adjusted bubbles to the speed I wanted, only to come back an hour later and there have been no more bubbles and the ppm have gone back down. I do not recommend it for cultivation, maybe it is suitable for an aquarium, but it is too difficult to find the right setting with a valve and lacks even distribution. It gets expensive with the citric acid and the consumption quantity if it has to be recharged every few days at most. I would also like to point out that the hose you fill with water leaks horribly and needs to be refilled frequently (if you want to see bubbles), a bit of teflon tape helped but didn't completely solve the problem. As for the quality of the product, I would say that it is well made. It gets pretty hot so be careful.