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Most will go away as the skimmer and pump slimes up, give it a week or so. Additives such as water conditioners or new salt water can cause a similar condition. Some carbon might help some.
Red sea coral pro skills be 470 and 1400 at 1.026. So I would agree with either bad test kit reading, or your salinity is to high. As stated earlier your levels won't hurt anything.
I have two of the WP series that have ran non stop for just shy of 2 years and they run like brand new. MANY other members have similar positive feedback for these powerheads.
Inverts can't handle any medication or copper so if you ever treat the qt you will kill them. I would setup a tiny invert only qt. 1-2 pts a day is fine but spread out, not all at one time per day