You are probably looking at this to start the nitrogen cycle in a new aquarium. It should definitely provide you with the ammonia you need to feed your nitrifying bacteria. It looks like (although I can't tell for sure) 100% ammonium chloride powder. I work full time in a pharmacy and am familiar with chemical raw/single component powders/medicinal powders and it's very similar. You'll most likely only need a tiny, tiny fraction of the total 500 grams in this jar for everything to work, so you're left with a ton of ammonia. I think you could use the rest to make your own ammonia cleaning solution if you like. You want to measure this with a scale. It would be nice if they offered this in 50 or 100 gram bags, but they will probably only relabel the chemicals they buy in bulk. Even so, it's probably better to use Fritz's other "Fishless Fuel" product, which is a pre-diluted ammonium solution. I didn't know Fishless Fuel existed until I bought this powder.
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