Last I tested the ammonia (yesterday) it was about 1.0. I am using the Tetra test consisting of 3 droppers. My Nitrite was between .75 and 1.0 before my 50% water change this morning. I haven't tested anything since. For this i am using the 6 test quick dips! 50% water changes for 7 weeks (or 5) since i am already 2 weeks into this is a lot of R.O. water and expensive! Should I still feed the invertebrets as much. (two to three times a week) (Mysis shrimp)??