Tank was running for 2 years with a small Aqua C remora skimmer. Skimmer in 9.5" of water depth and ran well for 2 weeks. It's new.
Only done 1 water change but the skimmer is located in the first compartment of my sump and the water levels fluctuate in my last (pump) chamber. The skimate got kicked back into the system so I know that will cause weird reactions.
No conditioner added to the water, I have a R o filter that drains into a 20 gal bucket for water changes, salinity was spot on and trace elements added to new water as I always do ?