Problem with fish dying that may be product related

[Randy Holmes-Farley Verified Community Expert]

I'm so new at this after a year of having a 45 g. I have a lot of question about the chem.? Water exchanges and regular water changes.
I was sailing along fine until my shop changed product to Red Sea. I have all of them to help the numbers of my tank. I had a steady incline so nitrates and after more water changes and dosing..... I lost my fish and soft corals. Finally the owner of shop called Red Sea directly and said to do 50% water change. So I did......still lost mor fish and mushroom leather....that was about four weeks ago. I don't understand the dosing of these products. I also mix my own salts and it is also Red Sea .Can you help me understand the adding of this concentrated brand?

We can try to help.

Can you describe exactly what you dosed and why you think it is related to the fish deaths (which might be for many reasons).

 

[laverda]

What exactly are you dosing? Did you test before dosing? What are your perimeters?

 

[ZaneTer]

Would you also kindly include the quantities that you dosed.