Hammer coral problem

I have this hammer coral and for the last week it has not extended fully, today it looks like this. I just started keeping corals so I'm unsure what to do. All other corals are fine, sps included. Parameters are n03-0-2ppm P04-.03Mag-1350Alk-11dkhCalcium-440

 

Mine always took a while to fully open when introduced into my tank.

Maybe it needs more time.

 

You didn't mention flow rate. My hammers like a little bit of flow. Not direct just some movement.

 

I have added a wall frogspawn, 2 different branching frogspawns, a branching hammer, and a wall hammer that I accidently fragged when placing. All 5 looked amazing and huge in the store and took a solid week to look half as good in my tank. For the first month or so they seem to be very unpredicable where they open slowly with the lights, stay open to varying fullnesses during the day, and then close before the lights go out for the night. After about a month they remain fully open all day and look amazing and only retract partially at night.

Basically what Im saying is I think frogspawns and hammers just take a really long time to fully acclimate to a new tank and new conditions. Just be patient and monitor

 

I've had the coral for about 3 weeks. It has a koralia 550 on a smart wave on the opposite end of the tank. The coral is not in a lot of flow by any means
The tank is a 3 foot 65 gallon

 

All of my other euphyilla are doing well i have a branching frogspawn, bubble and a torch and they are fine.

 

Just looked at it again since I took those pictures 5 hours ago and it now looks like this.

 

Only one 550 on that big of a tank

 

Coral looks deflated but I ldont see any signs of disease in the picture. It seems hammers are even more picky than others like frogspawn and bubble in there lighting and flow conditions.
Does it ever infate normally or is that the best its looked?

 

Mag 9 return and a koralia 750 on the opposite side.. The 550 will be another 750 once I get a new cover... It is normally "inflated"