For the last several weeks, my Hanna checker has shown my tank to have roughly 500ppm calcium. I was alarmed by this because I don't dose calcium and have no idea where the extra calcium could come from. I decided to test my water mix (Instant Ocean at 1.024 specific gravity) with an ICP and...
I have been testing high levels of tin in my reef for a very long time (years). My reef itself looks good but of course there is always room for improvement. I am wondering what steps to take next. Here is a quick recap of what I have done over the years.
Started ICP testing for my 180g. Had...