It's available at Amazon, Chewy and BRS too. You can also use a piece of shrimp that you get at a grocery store or even fish food to raise ammonia. Take a look at what @Tahoe61 posted above; very good information.The bad news is that if I want ammonia today I have to go to my lfs. Petco and petsmart don't have it. I can go to St. Louis tomorrow, it's not that far.
