Sorry for the delayed reply I've been very busy. I use API marine tesk kit 1x per week, and I use the test strips in between my full test. I've found the test strip has been very accurate to my full test. I added fish starting week 2 (2 clowns who died by wk4) I'm now in wk 8 and no more deaths (2 weeks with out a death) The water has been perfect according to the test kits. I've added a protein skimmer this past Saturday. Everybody seems healthy and active. The only thing that I'm curious now is my Fire Scallop, who is alive but he's opening this shell very wide. Which was unusual to me because he usually is half open similar to my Avatar pic. I've also started to add some Calcium to the water and feeding bottled plankton mix. I would like to add some LPS Coral this week and 1 new fish in Sept.