Agree with JustJen.Might wait until shrimp population number's in the hundred's before introducing near any of the dwarf cichlid's.
Even with plenty of hiding places for young shrimp.
Starting with less than a dozen shrimp,,the cichlid's could eat em up overnight.
I have around a couple hundred shrimp in 300 litre with cories,and cardinal tetra's.The tetra's pick off young shrimplet's, but population is too large for them to do much damage.
Yeh I want to get heaps of them at first, start out the tank with just a small bristlenose let them work their numbers up then add cories and later when the shrimp are established get the rams. I will probably have another tank by then for shrimp which I can put them in if their population is dwindling and not slowly increasing.