Fish dying

[creed2100]

4 fish dead since morning and rest gasping for air but corals happily blooming. Donno wats wrong. Wat to do? Please help!!!!!!!!!!!!!!!!!!!!!!

Distressed!

[LaW]

Check water. Tell us your water parameters. Without it, we couldn't help you much.

See if your skimmer or "air pump" still functioning or not.

how long had you cycled?

can choose to do a major waterchange, might not solve the main problem but it will help.

all the best.

[Underwater]

For help to narrow down possibilities, you got to let us know more info. Most important, water parameters....esp. ammonia. As we do not know much info, and to save the remaining fishes, best is to quickly do a major water change now and ensure good water circulation. You got any anemone or sea cucumber that died in your tank?

[iskay]

Whatever it may be, it might help to perform a 50% water change.

[peacemaker]

Prepare some NSW, transfer all surviving life stock to a container with NSW, and remedy your tank from there. Stray electricity?

[yikai]

check your ammonia.

[creed2100]

Thank you everyone for helping me.

I have done 50% water change. Checked my parameters (ammonia and nitrate). All are ok. Skimmer is not working. But rest of the fish are doing well now.

[creed2100]

Forgot to add, chaeto has disappeared. Eaten or dissolved? Could that be the culprit?

[LaW]

Dump in an airstone operated with an air pump.

all the best.

can be eaten by tangs. i witness it before. or simple your chaeto just rot away when the condition such as water and light are not right.