I'm pregnant with my first baby, and my brain is lost somewhere! I get these little itchy bumps so every once in a while i take a benadryl, ours here in central Illinois are cute little pink pills, i can only take half of one, so i cut them in half and set the other half on the counter. Right by the fish tank. Well buster the gold fish has rainbow rocks in his tank. I was cleaning the counter and i found what i thought was a little pink rock. So i dropped it back into the fish tank. Well to say the least the poor fish is still alive but swimming pretty slow, It only took me 12 hours to realize what i had done.