Is this a sting?

[iwishtofish]

My favia has a couple of nasty spots on it:

They've been there a couple months or so, now, and neither get worse nor go away. I think it's a possibility my galaxy coral tagged it when the powerheads were not set quite right to keep the sweepers from heading that direction (about 6" away).

Maybe someone else has seen this, and has a different theory...

 

[LedZep fan2]

My guess would be a sting from the galaxy coral. Galaxy corals are known to have VERY long sweeper tentacles and powerful ones at that. I'd move either the galaxy or the coral being stinged to a different part of your tank

 

[iwishtofish]

My guess would be a sting from the galaxy coral. Galaxy corals are known to have VERY long sweeper tentacles and powerful ones at that. I'd move either the galaxy or the coral being stinged to a different part of your tank

Yeah, this little galaxia did this in my old tank:

So it would be no surprise!

 

[Spyderturbo007]

Holy crap! I had no idea they were so long. I guess it's unfortunate that I just bought one about a week ago. It hasn't done that yet, but it still seems to be recovering from the transfer and dip. Each day it seems to open up more and more.

I hope mine doesn't have sweepers that long because with a 55g tank, that would take up most of the room for other corals.

 

[iwishtofish]

Holy crap! I had no idea they were so long. I guess it's unfortunate that I just bought one about a week ago. It hasn't done that yet, but it still seems to be recovering from the transfer and dip. Each day it seems to open up more and more.

I hope mine doesn't have sweepers that long because with a 55g tank, that would take up most of the room for other corals.

Good luck! Just try to adjust your flow so that the tentacles are pushed away from other corals.