Rtn?
- Thread starter JSB
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Ace25
Active Member
Never seen RTN start in that location. Are you sure nothing stung it? Have you checked closely for pests? Since the slimer grows so quickly I would frag that piece off anyway and check it closely outside the tank.
This is what RTN looks like.
[video=youtube;t2xjht42lrI]http://www.youtube.com/watch?v=t2xjht42lrI[/video]
This is what RTN looks like.
[video=youtube;t2xjht42lrI]http://www.youtube.com/watch?v=t2xjht42lrI[/video]
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ritter6788
Coral Fraud Private Eye
RTN/STN in my experience usually happens from the bottom up or tips down. Your pic looks like pests or something stung it to me.
OP
OP
JSB
Usually Confused
Yeah, I have seen the bottom up and top down death, so that is why this confused me. As for pests, this piece was adequately dipped (hopefully) before being added to the tank about 6 weeks ago. It is colored well and showing good growth. I did see an emerald crab hovering in that area last night which caused me to look. I wonder if it might be picking at some pest. Unless I dropped it when I put it in the tank, nothing has stung it, that is unless my frogspawn has some wicked long feeders.
So what is my next step? Do I wait a bit and watch? Pull it and dip it? Frag it? All three?
Thanks in advance.
So what is my next step? Do I wait a bit and watch? Pull it and dip it? Frag it? All three?
Thanks in advance.
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ritter6788
Coral Fraud Private Eye
I'd frag it below the damage. After you do that then frag the healthy part above the damage and you now have a healthy colony and a healthy frag to glue down or trade for something else. Get that crab out if you see it clawing at your sps again. 
OP
OP
JSB
Usually Confused
Ok, so I fragged the bad tissue off. Not only did I save the good end, and a tiny mistake frag, but I went ahead and mounted the piece with the necrotic tissue just to see if it will die off, or recover. I inspected the bad piece with a strong magnifying glass and saw no signs of pests or tissue damage from bugs or crabs, at least to my uneducated eye.
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H@rry
Troll
I'm always reluctant to try to save any piece that is obviously unhealhy. I've seen instances where I think otherwise healthy corals were "infected" by a piece with dying tissue. It might just be my imagination, but when I have a piece RTNing and I cut the good part off I throw the bad part away. From that pic though it looks more like a sting from a "hotter" neighbor than anything else.
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OP
OP
JSB
Usually Confused
Unless I dropped it on something else, it could have only been sweeper tentacles from the frogspawn I got from you. . But seriously, there are another couple of corals between the two that show no stings. I was 50/50 on keeping that piece, and did so more for education than for trying to save the piece. If you think I should chuck it, I am good with that. There is less risk, obviously.
. But seriously, there are another couple of corals between the two that show no stings. I was 50/50 on keeping that piece, and did so more for education than for trying to save the piece. If you think I should chuck it, I am good with that. There is less risk, obviously.
