[Dentoid]

I make 15 gallons at a time using 15 gallons of RO/DI water with a TDS reading of 0ppm and add 7.5-8 cups of Oceanic salt in a 20 gallon trash can with a MJ 1200 and a heater. I have done Alk readings on both Oceanic and Tropic Marin Pro and heve found Oceanic to be better for my tank in that regard. The other reading are just like yours. I always adjust the salinity to match my tank and the other readings are all zero.