Wait!
One Month and you had corals and fish and a shark!?
Your tank isn't done cycling at all you could've gotten away with maybe 1 fish after two weeks!
But you overloaded your system much to quickly you probably didn't have enough nor have enough bacteria to handle your bioload.
That's why you can't kill your nutrient levels.
You're going to have to give it at least another month or so before you start putting anything in it my friend. You have to go slowly with a tank that size! 1 fish a month at least to give your tank time to adapt to the increased bioload
One Month and you had corals and fish and a shark!?
Your tank isn't done cycling at all you could've gotten away with maybe 1 fish after two weeks!
But you overloaded your system much to quickly you probably didn't have enough nor have enough bacteria to handle your bioload.
That's why you can't kill your nutrient levels.
You're going to have to give it at least another month or so before you start putting anything in it my friend. You have to go slowly with a tank that size! 1 fish a month at least to give your tank time to adapt to the increased bioload

