I had temporary brain freeze and got mixed up between the stresscoat directions and the ich medication I was using. So I ended up putting 10 teaspoons in the tank instead of 2. I actually did this 2 weeks in a row before I came so my senses and realized what I was doing.
Nothing happened to the fish. They were all fine. It was a long time ago but I still can't believe I did it.stress coat has good bacteria in it so that if your fish are new to their home or something and they aren't doing well, by you addind the stress coat, your adding bacteria so your fish aren't stress, you could really never have to much benficiall bacteria.
Stress coat is the one that dechlorinates the water and stress zyme is the one with the "good bacteria" in it...adding too much stresscoat in the short term will not bother your fish!