Seachem’s flagship product prime, allows me to do that. Highly potent. Also never expires.

Use this regularly to keep my 30 gallon aquarium stable. The aquarium is stable, i rarely loose a fish. From adult breeding pairs to their fry.

Prime is nothing more than snake oil! Don't buy the hype. The product i got was not sealed, it smells nothing like the bottles i have had in the past.

The only drawback if you can call it that is you need a spoon to measure. It works great, and we were just hit with fallout from the chernobyl choo choo. Our water in the apt.