If it's advertised as a liquid co2 source it is likely the same ingredient, glutaraldehyde. I think API makes one, API co2 booster or something like that. The products typically have dosing recommendations on the bottle, and the caps can often be used for rough measurements, I use plastic syringes to measure mine out. If it's a liquid fert, a full recommended dose should be fine, for a glut product if you want to be cautious start with a half dose and work up. Personally I've dosed full doses of excel with java moss, flame moss, fissidens fontanus, and taiwan moss, and had little to no melt. Vals on the other hand disappear when I dose excel.