As other reviewers said, this is not included in the bottle shown in the photo. Ounces are the same, so personally it's a matter of preference. However, this is not very good for hard water stains. I used this in my 10 gallon terrarium and it didn't help. I've had better luck with lemon juice, so give it a try if you're using it on reptiles, then rub the jar well. Maybe I'm just doing it wrong, but this is my least favorite API product.
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