Why my duncans look like that?

[Notsolostfish]

My tank is over a year old, i dose all for reef on a doser 40ml/ day. I test weekly with salifert, and hanna. And also have the trident. My parameters attached below. Long story short my duncans used to have to long tentacles, and grew a lot of heads. And now they look like that i dont know why.

The only change i did to my tank, was adding 24ml redsea ab+ everyday. My tank is a 150G water volume. And also added a hammer and a torch on the other side of the tank. I run carbon 24/7 on a reactor redsea carbon.

Flow and light are the same never touched them. Any help would be appreciated it

 

[tbrown]

Mine did the same thing but they're happy so I leave them be.

 

[WalkerLovesTheOcean]

My Duncan (especially when growing a lot) will go through periods for a few days where the polyps retract. Give them a few days and they should go back to how they used to be.

 

[Notsolostfish]

My Duncan (especially when growing a lot) will go through periods for a few days where the polyps retract. Give them a few days and they should go back to how they used to be.

Its been 2. Weeks

 

[tbrown]

Its been 2. Weeks

Mine have been like that for like 6 months and still adding new polyps.

 

[tbrown]

Doctor Google says higher flow makes them shorter and stubbier.

 

[WalkerLovesTheOcean]

Its been 2. Weeks

I wouldn't worry too much, as long as you see no tissue recession I think they're fine.