Hi all. 55 gal. FOWLR. No fish yet still curing rock and cycling tank. The rock has been in for two weeks, I did a water change one week ago to help keep all the hitchhikers alive. Now the ammonia is between 1 and 2 pmm. Should I go ahead a do another small water change. I am in no hurry and want to keep what appears to be, according to the LFS as some type of shrimp. They are running around everywhere !!!!