Hi All, I apologize in advance I'm sure this has been ask before. I'm setting up a new 75 gal tank. The water was placed in a holding tank for two days then the aquarium was filled up. By accident I had brought the wrong product, one dose of prime was placed in tank. I went back to store and purchased Stability and started dosing per directions. This is the third day of dosing with no reading of Amonina or Nitrate. I placed a pinch of flake food on two days, to see if could get reading, with no effect. I feel that I need to do something different? I feel the Bio filter has not kicked in. Any suggestions?