nickel

I have a 7 month old 30 gal mixed reef tank. Things are going pretty good - just auto dosing AFR and adjusting dosing every 2 weeks to hit ALK of 8. I also have to add magnesium which for some reason is being consumed faster. I'm doing 20% WC with Red Sea Blue salt every 2 weeks as well. I...

Can Sulphur pearls contain Nickel? I received my latest ICP with Ni at 26ug/l , it was previously at 0ug/l. The only changes I can think that I made on the tank was to run a sulphur reactor for a few weeks to reduce nitrates. It is no longer in the tank as nitrates did reduce.

So I got my ATI water results back and Zinc, Nickel, and Iron were high. Went looking at MP40s and found one to have a small amount around the end of the shaft, so I felt pretty good about finding the issue. While cleaning the sump out today as the detritus was building in the refuge section...