Difference whether shrimp or fish in AQ

So first: plant is great, had been delivered super packed and has grown magnificently!
BUT: I have (after days of watering down the drain) set into a shrimp pools and some shrimps have gone Hopps. I bring the clearly with the plant in connection because nothing else was changed and fear that the plants were fertilized quite well - lethal to the shrimp.
Nevertheless, it is a great commodity for a Fish Aquarium.