During the cycle all you need to check is ammonia, nitrite and nitrate. All other parameters are suspect until the tank chemistry settles down.
During the cycle I recommend not running the skimmer and minimal lights. The skimmer if probably broken in by now so it's up to you whether to continue or not.
You need to see the ammonia drop to 0 as well as the nitrite. Then the big (35%-50%) PWC
. That's when you want to start testing everything. After a week of steady readings you're ready to start adding some life.
BTW, did the postman bring anything new today?