Hi guys, wanted to ask something.. If my current tank salinity is 1.025 , and i drain 30% out. Then i add back that 30% into the tank using NSW bought from Irwana , do i need to measure the salinity in the tank and add some salt if the salinity is too low?
Also, if water from my tank evaporated, do i top it up with di water or nsw, if i use nsw will the salinity increase ??