"grooving" noted in SPS

[favites]

Hey guys,

have noticed on some sps I get "grooving" or an area of demarcation between branching on corals. Seen on some acro and milles, does not appear to have any effect on growth etc. I have always assumed this was a normal phenomenon, but just curious if others have noted. thanks

Mark

 

[hybridazn]

Have you checked for pests?

 

[Theo15]

What lighting do you run ?

 

[luke33]

Hey Mark, looks like you are running t5's so shadowing isn't the cause. I don't think that is normal and would dip a colony doing that in some bayer and see if any pest came off.

 

[BoomCorals]

Almost looks a bit like bite marks?

 

[delv2323]

Is the groove bleached/light colored or bare skeleton?

 

[favites]

thanks guys-- I run at ATI T5- led hybrid. I dip everything in Bayer and then some, definitely not a pest. The grooving is very symmetric, it is not dead tissue , just area of less pigmentation. Hard for me to get a good picture of with my iphone.

 

[Tahoe61]

Flow has not become impeded secondary to growth?

 

[BoomCorals]

thanks guys-- I run at ATI T5- led hybrid. I dip everything in Bayer and then some, definitely not a pest. The grooving is very symmetric, it is not dead tissue , just area of less pigmentation. Hard for me to get a good picture of with my iphone.

Good to hear it's not bare skeleton!

 

[MantisReef]

Its possible some detritus has laid there for awhile and then been blown away leaving a lighter area of tissue underneath

 

[favites]

perhaps its flow-- it was about a foot size colony before recently fragging it. It is sandwiched between 2 mp 40's and gets mega flow, but maybe when its more dense the detritus collects enough to cause the effect. Come to think of it it the effect was negligible on the outer portion already fragged. I'll buy detritus and flow. thanks guys!

 

[spspirate]

To the looks of it that would be a good start.