Thanks! - think I will forgo this for the moment. I am in fact a chemist- I know this stuff isn’t really CO2 but they claim to help plants grow, maybe more because they kill algae though. Just invested in a better light than my 6W light from aqueon lighting my 20 g long, so hopefully that helps too.
My tank has been running over a year, certainly no issues on the fish end. The plants are just clearly surviving and not thriving. Nitrates consistently around 20-30ppm just from the food and fish with biweekly water changes