Coral feeding advice, hammer not opening

[alice 01]

Hi all
I have mostly soft corals and a few Lps coral.
I bought some new frags recently
All soft corals are fine but my hammer frags are not opening they have been in situ for 5/6 days now.
I know they can be a little slow to open but I'm not sure what the usual time zone is.
Anything I can do to help them along
Also the last 2 corals pictured are not doing as well as they were, even though nothing has changed.

What would be a good feeding regime for the corals?

My water levels on last test were (one week ago, will test again tomorrow)
Ph 8.15
Nitrate 5
Nitrite 0
Ammonia 0
Phosphate 0.05
Kh/alk 8.6
Calcium 470
Magnesium 1440

Salinity 0.025
Temperature 25


Also have a torch coming on Friday so want to make sure I have no issues with that.

Thanks in advance

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[mcgyvr]

Looks like a fairly new tank.. Still see typical new tank uglies/film algae/cyano,etc...

Give the corals some time for now.. Another few days.
Feeding really shouldn't be needed as the corals should get basically all they need from the light/algae inside them..

The bottom 2 are typically rather finicky about light levels.. Too much will often be a problem for them.. What type of lighting do you have? What settings if LEDs,etc...?
Can you try to put them in a more shaded area?

What do you have for flow in the tank (powerheads,etc..)? Where are they?
Can we get a full tank shot?

 

[Four drachma]

I would echo what mcgyvr said, also, it’s been my experience that hammers do best in low flow until established. Hammers also need at least a few hours of strong lighting to maintain their color. Mine does best on the bottom in the gravel, slight flow, and three hours minimum strong lighting during the day...from what I can see your cyano is gonna go crazy out of control when you increase lighting, so manually suck that out, control feeding, or it’ll cover everything.

 

[Four drachma]

Oh, and put all that green star polyps together our on an island by itself, or it’ll cover all your rock and most corals eventually...