What I learned from this activity was that when a little fish eats poison it affects the whole food chain and it it can even affect us. In my experiment the biggest fish ate 2 small fish, and the small fish ate 3 zooplankton, And the zooplankton ate 9 phytoplankton, finally each of the phytoplankton ate 2 poisons. All of the 18 poisons that the phytoplankton ate moved up the food chain and the big fish ends up with all of the poisons.