Help- with Zoas

[Drew Gehring]

Did a water change about a week ago, they have not been the same since. I used RO water and the same salinity. I also add coral Up every few days. They were beautiful and now they don't look happy any recommendations?

 

[DSC reef]

Something has made them upset. My guess is the coral up. One key rule I go buy is do not add a chemical you can't test for. There is no need to add a product like coral up without knowing that your strontium, iodine, etc, is low. Especially after a water change, you could have overdosed an element. I would stop the coral up and just continue a routine water change regimen. Test all your current parameters like alkalinity, calcium and magnesium to make sure there are no major swings.