
Although labeled Instant Ocean, there are many fish chemical companies that make both freshwater and saltwater. I read the ENTIRE bottle. Even fine print. Then, when my husband read it without my opinion, he came to the same conclusion. The product does NOT indicate ANYWHERE, ONLY salt water or even fresh water. Many chemical companies make these items and claim they can be used with any aquarium. It's confusing to know what works under what conditions. I haven't noticed any change in my experience with this product. I have used it in various ways and it is not suitable for fresh water. None of my fish or loaches died, thank goodness. BUT should be written in black and white what it can be used for. unfortunately didn't work.

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