Wayne Sallee wrote:
You can ad a Pseudochromis to a tank with said shrimp, but adding said
shrimp to a tank with a pseudochromis is a very high risk.

Kids named my pseudochromis "Pow Pow" because he'll hide in the rocks
and then darts out to ambush a passing fish: POW.

Can you trap him out for a while? Put him in the QT for a few weeks and
let the shrimp settle. in.