Yes, shrimp generally are sensitive.
My advice? shrimp or no shrimp, STAY AWAY from chemicals like bullseye or any other ph modifier, it is asking for trouble. Despite what the LFS tells you, ph isn't really important(Except for saltwater, or certain sensitive fish, anything from 6.0 to 8 is ok), as long as it is stable. Fluctuations, such as you will get with adjusters, are extremely harmful.