NoMercy CO2 tablets

whoops, that's for reservoirs? Nah, can't be. Why would you want more co2 in your rez? Dissolving co2 in water will typically acidify it, which may or may not be useful. This is for gassing off co2 into atmosphere, corerct?

The only good way to add co2 is with the gas-powered options. Do get a regulator/alarm so you don't kill yourself and your family. For 25-33% more yield, i'm not a fan of such risks. With 25-33% yield comes a need for roughly 25-33% more light too, so you'll spend more in electricty.. probably spend more per gram since you also need propane or hookup to natural gas, etc. Though, maybe not.. would need to see results and compare, but that's an expensive experiment. what definitely doesn't work that well are these bags and exhale bags and whatever else is out there.. you probably need so many that the cost is prohibitive. when using a diy method, you need somethign like 30-40lbs of sugar along with appropriate amount of yeast just to provide during flower phase (~2 months). To give an idea of scale of what you'd need in a small-ish room to create an atmosphere with 1200-1300ppm co2. Larger room will need more.. a room not sealed up well will need more. Less air exchange, even if you keep RH in check, means more risk of disease, too. lots of people do it. i'd love to see the cost per gram change per grower's context. That would be the biggest key for me. I have a feeling it doesn't scale well for a home grower. you have a lot fewer plants to spread the cost around.

If its like alkerselzier that's legit a sodium bicarbonate "banking soda" and citric acid tablet. much cheaper on its own. Unless its using different carbonate like potassium or calcium carbonate. Seems like a joke. you can add in your own CO2 to water by aerating it and it will dissolve carbonic acid into it as well. that's legit CO2 from the air dissolved into the water. Or just give them sparkling water. prob less sodium in it as well. Soda stream maybe? lol one red flag of that company is they list no guaranteed analysis of any of their products or any MDS SDS or MSDS for any of their products and if you need to contact them to get them that's purposeful design and they are hiding something or being sketchy. Many other options for getting extra CO2 into the environment like fungi or legit CO2 gas canister releasing slowly. CO2 is not needed in most grow rooms unless they are sealed as it will all be vented out. Indoor environments tend to have high levels of co2 because we live in them as well and its waste product of our own respiratory system. I think you wasted your money, the idea is neat, but I don't think it has a lot of practicality or use in common scenarios. Good Luck!

Rocket science indeed.

Lol baking soda compressed into hockey pucks and sold at triple price, lulz.