do you have a reef test kit? because if you don't have one you should not be dosing anything in your tank at all.
Always test your parameters of the tank before you add anything to it. You can overdose on almost everything which ends up with a tank crash.
35gal Reef, 20gal Sump--2 years, 3 months--Shut Down
If you can't fix it with a hammer, you have an electrical problem!