What is this montipora doing?

[karimwassef]

<a href="http://s1062.photobucket.com/user/karimwassef/media/73BAE32D-D118-4A53-8493-96A0C70F8447_zpsre7242oq.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/73BAE32D-D118-4A53-8493-96A0C70F8447_zpsre7242oq.jpg" border="0" alt=" photo 73BAE32D-D118-4A53-8493-96A0C70F8447_zpsre7242oq.jpg"/></a>

<a href="http://s1062.photobucket.com/user/karimwassef/media/4E719710-F317-4316-ADAC-7549417DBEB0_zpshk2mjdzd.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/4E719710-F317-4316-ADAC-7549417DBEB0_zpshk2mjdzd.jpg" border="0" alt=" photo 4E719710-F317-4316-ADAC-7549417DBEB0_zpshk2mjdzd.jpg"/></a>

Are the white tendrils normal encrusting behavior to bridge to new rocks?

 

[GhostCon1]

Can you get a better pic?

 

[undertai]

Its encrusting to the rock work. Its a offensive and defensive behavior to make sure it has room to grow.

 

[karimwassef]

More extensions

<a href="http://s1062.photobucket.com/user/karimwassef/media/A93D5056-3882-4228-929C-1A4DF1C505E1_zpsabeizemt.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/A93D5056-3882-4228-929C-1A4DF1C505E1_zpsabeizemt.jpg" border="0" alt=" photo A93D5056-3882-4228-929C-1A4DF1C505E1_zpsabeizemt.jpg"/></a>

<a href="http://s1062.photobucket.com/user/karimwassef/media/51BB81F5-85C5-47A5-B2C9-0EA765C71CFD_zps3nqpmm2o.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/51BB81F5-85C5-47A5-B2C9-0EA765C71CFD_zps3nqpmm2o.jpg" border="0" alt=" photo 51BB81F5-85C5-47A5-B2C9-0EA765C71CFD_zps3nqpmm2o.jpg"/></a>

<a href="http://s1062.photobucket.com/user/karimwassef/media/B32AF6ED-0E56-45B0-9602-441AB713D95F_zpsnk873xfy.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/B32AF6ED-0E56-45B0-9602-441AB713D95F_zpsnk873xfy.jpg" border="0" alt=" photo B32AF6ED-0E56-45B0-9602-441AB713D95F_zpsnk873xfy.jpg"/></a>

Today - more extensions

<a href="http://s1062.photobucket.com/user/karimwassef/media/A49DC7F4-0732-440B-B887-00C705876E94_zpstdsyxdpk.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/A49DC7F4-0732-440B-B887-00C705876E94_zpstdsyxdpk.jpg" border="0" alt=" photo A49DC7F4-0732-440B-B887-00C705876E94_zpstdsyxdpk.jpg"/></a>

<a href="http://s1062.photobucket.com/user/karimwassef/media/9BF5423D-6951-4BE8-BDDD-A502B3E6088B_zps3wqvdp0i.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/9BF5423D-6951-4BE8-BDDD-A502B3E6088B_zps3wqvdp0i.jpg" border="0" alt=" photo 9BF5423D-6951-4BE8-BDDD-A502B3E6088B_zps3wqvdp0i.jpg"/></a>

<a href="http://s1062.photobucket.com/user/karimwassef/media/A6D29285-5BB1-4522-A7AC-2A47C8AB52CD_zpsinja0qox.jpg.html" target="_blank"><img src="http://i1062.photobucket.com/albums/t496/karimwassef/A6D29285-5BB1-4522-A7AC-2A47C8AB52CD_zpsinja0qox.jpg" border="0" alt=" photo A6D29285-5BB1-4522-A7AC-2A47C8AB52CD_zpsinja0qox.jpg"/></a>

The region of the extensions turns solid overnight...

This happens on evenings when I feed heavily.

Do other corals do this too or is it just montis?

 

[dymaxiun]

Happy coral growing....

 

[alb_56]

Awesome, mine do this every once in a while and I always wondered what it was.

 

[karimwassef]

Can you post a pic of yours?

 

[smtank]

Mesenterial filaments, used as both a defensive mechanism, and sometimes a feeding response. I would say that is warfare, defensive.

 

[karimwassef]

The growth is mostly on concrete rock I made - nothing on it yet. There a few button polyps here and there but the majority of the filaments are on bare rock.

 

[alb_56]

Ill try and get one next time I see it. Mine have never seemed to have any incentive to respond to anything that I know of either. Mine does it on an extended ledge that has grown out though not on the rock work.

 

[karimwassef]

Also. I call this a monti but I never got positive ID confirmation. Is it a montipora or just an encrusting porites?