Found out the 50% water I did dropped my dkh from 11 to 9 is what upset the zoas(and everything else). They have been closed for nearly a week. Yesterday they looked like they were nearly dead locked up tight a little white and loosing color. Today they opened up a tiny bit. My question is do I leave it where it is and hope they turn around. Or should I dose to get them back to where they were. I had been over dosing 2 part trying to get my calcium up. I added a rasta colony after the terribly messed up water change and it is doing great. Thanks for the help.