Sudden cloudy water and skimmer going crazy?

[kilnakorr]

Hi

My tank suddenly got a bit hazy, and skimmer creating a massive amount of thick white foam.
It all happened within 15 minutes, after a routine feeding of 2x frozen cubes.

Fish acts the same, some corals seems stressed, others (lobo, acan) are showing feeding respons.

Nothing dosed, and my hands never touch the water.

Can anyone come with a plausible cause for this?

 

[T-J]

Bacterial bloom?
Contaminated food?

 

[kilnakorr]

Bacterial bloom?
Contaminated food?

Don't think a bacterial bloom can happen in 15 minutes.
Food would be the obvious cause, but same food as always, same package as yesterday, and I rinse it before adding.

 

[Atrumblood]

Could have been a spawning event. Do you have snails or urchins? Every time I stir up the sand in my tank, all the snails take that as a signal to skeet-skeet into the water column.

 

[kilnakorr]

Could have been a spawning event. Do you have snails or urchins? Every time I stir up the sand in my tank, all the snails take that as a signal to skeet-skeet into the water column.

I was thinking about that.
But not sure the corals should react negative to it. Only some did though.