Hey there so I was wondering how I could raise my water hardness, it's been at a KH hardness of about 5.5 for about a week now and total hardness of about 100 ppm, my pH is at 7.2, I have some Kent superbuffer dKH that I have left over from my salt water test tank lol didn't end well, going to try full scale in a few years tho lol anyhow should i use some Kent or not? Btw I do have crushed coral in my tank
thanks!!