I just read through the OPs post history....
@coral papa - I think it best if you take a step back before adding anything else to the tank.
You have had a string of issues. Keeping a reef tank is not overly hard, but it does take some discipline and a bit of learning.
It appears that you are eager to get things into the tank, but may have jumped in a bit too fast. Choosing fish and coral that can cohabitate together is important and rash decisions often create large problems. Likewise, different fish and different corals have different levels of care and expertise.
Lastly, these are captive systems and as such the water parameters are extremely important to monitor and maintain. As a beginner you need to get your water parameters sorted out first and then add one or two things and make sure that you can care for them before adding 3 or 4 or 10 more. It looks and sounds like things got a bit out of control and your additions pushed things further out of control.
Get some decent quality test kits and let us know what your current water parameters and temperature are. What size is the tank?
What are you using for flow?
What fish and coral are left alive?
What are you feeding, etc.
We can't help unless we have the full picture.