It depends on the type of shrimp you got, there are hundreds of different types of shrimp and not all of them peaceful bottom dwelling critters. But first you need to test your tank for ammonia, nitrites and nitrates and post us the results, the guppys could have died of their own accord and almost any shrimp, peaceful or not, will not say no to cleaning up any fish that die in the tank.
How long has the tank been set up for, how many gallons does it hold and how many and what types of fish/other critters does it hold?
It depends on the type of shrimp you got, there are hundreds of different types of shrimp and not all of them peaceful bottom dwelling critters. But first you need to test your tank for ammonia, nitrites and nitrates and post us the results, the guppys could have died of their own accord and almost any shrimp, peaceful or not, will not say no to cleaning up any fish that die in the tank.
How long has the tank been set up for, how many gallons does it hold and how many and what types of fish/other critters does it hold?