What happens if you Overdose on Dechlorinator?

I do water changes without buckets. I attach a python hose to my shower head, get the right temp, dump some Amquel into the tank, and turn the python on and start filling. I have no idea how much I put in the tank. Just a healthy squirt from the bottle and start filling. Don't sweat it....
 
Prime says you can safely overdose 5x for high nitrite. So that tells me it's not really a problem for Prime anyway.
Joe
 
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