Not sure what happened,overfed - not sure as i fed less than 1 cap of the 5 in 1 coral food (1st time using this coral food ). Within an hour, the fishes began to show sympton and died eventually.
Like to find out, when i open the coral food, there was no seal ( meaning the moment i uncap,i can see the content in the bottle ). The solution is also black in color. As this is the 1st time i am using 5 in 1, previously using Kent coral food solution ( can't remember the name). So is this normal?