Safe to turn off lights to get rid of cyano?

[EthanPhillyCheesesteak]

Is it safe to turn off the lights in my tank for three days to get rid of cyano? Would my pocillopora corals and mini maxi carpet nem be ok?

[Rob22]

I don’t know much about pocillopora, but if everything is healthy it should be fine. Corals go through storms where they don’t see sun for days and survive. 

[Clown79]

72 hour black out is common. The only issue is, it's a bandaid without finding the cause and correcting...it will return.

[EthanPhillyCheesesteak]

2 hours ago, Clown79 said:

72 hour black out is common. The only issue is, it's a bandaid without finding the cause and correcting...it will return.

I just bought a protein skimmer, and have done a bunch of water changes, so hopefully it will stay gone.

[EthanPhillyCheesesteak]

4 hours ago, Clown79 said:

72 hour black out is common. The only issue is, it's a bandaid without finding the cause and correcting...it will return.

I just turned on the lights for a second to see how everything’s going, and I found my mini maxi nem upside down on the sand? He just fell on to the sand and wasn’t moving, but I turned the lights back on, and he immediately flipped himself over? Is this normal? Should I be worried at all?

[Clown79]

I've never done a black out period myself.

 

None of my nems have done that.

 

[EthanPhillyCheesesteak]

6 hours ago, Clown79 said:

I've never done a black out period myself.

 

None of my nems have done that.

 

I’ve never seen him do it before either, this is the first time?