As an auto detailer, you use a lot of really harsh chemicals and have to exercise caution for your health. But never seen a label warning for aquatic life. Think it’s good that this warning is there. I always wear gloves and never do water changes on the same days I use this particular product. But I am guessing the warning is there so people don’t use this on boats. I sure wouldn’t as a precaution even if it doesn’t say it..

