New to corals

New to hobby and was curious if certain corals will get stressed and put off a stringy mess in the tank? Not sure what type of coral this is! It is like a green chip looking coral will try to get better pics tomorrow.

I just installed my skimmer and had to turn off the pump and powerhead so I could install in rear chamber of my 24 gallon nano cube. I removed the sponge and changed out the carbon bag and put skimmer in center chamber. The water got really cloudy and when I restarted everything there was a stringy almost spiderweb like strand all over and looked like it was coming off this coral. Any sugestions and or concerns. Thanks in advance

 

Looks like Montipora capricornis, typically like to be acclimated to lighting, will show mesentery filaments (stringy stuff) when stressed or battling for real estate.

An over all easy and fast growing sps. As with all sps make sure Ca/mag/alk are in line.

Congrats.

 

Thanks! Ca/mag/alk are all good. I only have sps in my tank now and all are doing good, except for last night! All looked great this morning when I looked before work.

 

Looks more like coral slime to me; normal for stressed SPS or after exposure to air.