the Enhancer Co2 Dispersal Canister and Refill for Indoor Garden, Indoor Tent, Indoor Greenhouse, Indoor Grow Tent, Hydroponic Garden

Great folks to buy from. Worked great! For 6'x6', shake lightly every 2 days(Most recent info from TNB website)! Tie tightly BELOW the cap w/rope or twine. Like pic in refill pack reviews! I hung around plant level in front of fan, as CO2 is heavier than air and will stay lower in the area, along with good circulation. Definitely makes a noticeable difference! We only used for 4 wks, to try it out. Right after flowering stretch (about 2-3wks in flower), as I figured that time frame would be when most growth occurs, up to 8-9wks. Next time I'd use for 6 weeks, or probably 5, as refills last not quite 2 weeks. I actually ordered a very nice, inexpensive, Hydrofarm CO2 Monitor from Amazon. Gives many details! But because of shipping errors, I got the meter around the 12th day of the 2 week expiration. Levels were still around 800PPM. Next time around I'll keep an eye on the meter, which saves high and low points on a screen w/a graph showing the pattern! Highly recommend for $20 bucks more than the cheapest, which only give the present PPM only. But this isn't a review of that, just what I found on here, lol! I WILL EDIT REVIEW AFTER USING WITH METER NEXT TIME. BUT VERY IMPRESSED WITH RESULTS AFTER THIS FIRST TIME TRYING! You can make your own w/sugar and yeast, but the best "formula" I found required changing contents every day, to a day and a half.. Inexpensive comparitively. But time is money, and it's too much time I found, for me. Not needed in veg if you have good ventilation, as 800PPM is the highest recommended use in veg, and we've always had great growth w/regular ventilation. THIS PRODUCT DEFINITELY GAVE US NOTICABLY MORE FLOWERING GROWTH. A DIFFERENCE MAKER!

This is a great product. It definitely works and increase your use from week five until finish.

These do work but my biggest complaint is they don’t last long at all. You have to refill them every two weeks or they are useless. I think next time gonna stick to co2 bags as they last a lot longer for about the same price. Just wanted to try something else but I’ll stick to what I know.

For the CO2 they produced and for the duration I have to say this would only be worth it if the refills were around $8 a pop.... buy your own sugar, yeast and bottle

Good stuff

I was hopeful that this product would add a significant amount of Co2 in my room or at least enough to justify its cost.Unfortunately the product was underwhelming at best but it does not produce enough Co2 to effect your garden in any noticable way.The product regiures a refill that TNB will happily sell you at a much overpriced price point.My suggestion is if you want to go this route is to simply make your own bottle at home and fill it with a homemade mix it will be substantially cheaper and you will gain the same results.If you are not a DIYer just go to YouTube and look up any CO2 enrichment projects and you will have step by step directions.

This does not increase co2 in your tent in a impactful way. Do not buy, complete scam. You can make this at home with dry yeast, sugar water and a large soda bottle.

The media could not be loaded. I love the fact that I can activate it when I choose. I’ll write more about this later when I have used it in my grow tent