All fish died

Question
I woke up today and my saltwater fish tank was cloudy and all of my fish where died. What caused this? I had a yellow Tag, Flame angel, and 2 clown fish, no coal of any kind, but there was live rock.

Answer
Hello Christine It is really hard for me to answer this question with out knowing a little more about the circumstances leading up to your loss. What size tank do you have? How long has it been set up? Do you test your tank often for ammonia, nitrite, nitrate and pH? What was it before your fish died? Was your heater working properly? When was the last time you did a partial water change and how much do you usually change? Were there any signs of stress or disease? Could a toxin have entered the tank? Could the power have gone out while you slept? And the questions can go on and on. If you want my help I would be glad to give you it but I need a little more info to help you determine just what happened.