First, wait until your cycle is complete and retest your parameters. Second, the API test kit is very variable in regards to it's calcium test. I'd suggest getting a 2nd opinion at your LFS
(provided they use a different test kit). Either way you'll probably want to buy a better reef test kit down the line if you intend on keeping corals. Red Sea and Salifert make good test kits for this.
Few other thoughts:
Are you keeping your lights on during the cycle? If so, turn them off. It's not needed right now and only promotes algae growth.
Are you sure you want crushed coral in your tank? If not cleaned properly, this stuff becomes a nitrate factory and keeps decaying organic compounds.
I'd also also recommend increasing your salinity to 1.026. It's the salinity of natural sea water and will be best for your future fish/corals.