Growing or dying?

Sorry, but I don't think they will make it. Once the skeleton is showing their days are numbered IME.

 

water test results are

salinity 1.24
ph 8.4
amonia 0
nitrite 0
nitrate 15 (which aint to awful)


when you frag em dont there skelotons show for sometime how could it not heal ?

 

They are definitely looking bad but I wouldn't count them out yet, I think those corals are pretty hardy but you need to figure out what is wrong with your water/lighting etc.

You need to find out your calcium and alkalinity at least, magnesium would be good too.

Have you checked your salinity with a calibrated refractometer? If not, you should to make sure it's accurate.

These aren't high light corals by any means but what lighting do you have?

How much flow do you have in the tank? What other livestock?

 

They look bad, especially the open brain. When you frag an lps coral, you generally cut the dead skeleton. You can cut actual polyps, such as favia, acans etc. and they do generally heal. But they need good water parameters. You can actually frag open brains, trachs and fungie, but to have any real success, you need a wet band saw. Anyways, The Fungie isn't too bad right now, but the other one looks toast to me, I have not seen a coral recover when it's skeleton is receded that much. If you start seeing algae growing on the sepia, then it's really bad.

 

Ya Calcium is a prime reason for poor polyp attachment to the skeleton. Check your cal, alk. I suggest you immediately dose cal, alk and mag and do a 20% water change before you dose. Also check your tank temperature. I get great coral growth at 76 degrees.