Something took a bite out of my setosa?

[wonderz]

Anyone know what might have happened to the setosa? I had this for 2 weeks, but just notice to the top part is white-ish today. I notice the right side was little white like 2 days ago but didn't think too much of it. Looks like something took a bite out of it. Not sure if its fish, inverts, or pest. The other sps I have looks fine. Any help would be appreciated. Thank you!

Livestock list: clownfish, goby, skunk cleaner shrimp, pom pom crab, tuxedo urchin, and bta. These were all in the tank before I had the frag.

 

[M007]

Crab :hmm5:

 

[javisaman]

really? Looks more like a chip to me.

 

[wonderz]

Crab :hmm5:

did you read somewhere or have first hand experience that pom pom crab does that? I tried to search, but couldn't find any. From what I can see how they eat, if anything, they would be eating the polyps or something. That's a pretty big cut there.

really? Looks more like a chip to me.

That's what I am kinda thinking... The frag did fell off the rock last week, but I didn't notice any damage then. Does it get worst over time?

Oh and also, should I do anything with the frag? or just leave it and let it heal by itself?

 

[OKDOHK]

Just my 2 cents. Is it being exposed to more light then what the sps was getting before. I found with some of my sps, if they were exposed to more light then where i bought them from, they will experience this. During the night amphipods would eat the dying tissue. The next morning i would find exposed skeleton in the same place the amphipods were observed that night.

 

[wonderz]

Just my 2 cents. Is it being exposed to more light then what the sps was getting before. I found with some of my sps, if they were exposed to more light then where i bought them from, they will experience this. During the night amphipods would eat the dying tissue. The next morning i would find exposed skeleton in the same place the amphipods were observed that night.

that's a possibility. what do you do in your case?

 

[OKDOHK]

that's a possibility. what do you do in your case?

I reduced lighting. Well, there are two methods i use. Either i would place the sps lower in the tank, or i would attach at the top of the tank, transparent plastic bags (using close pins), to reduce lighting over that area in the tank.

 

[DNA]

I have a maroon clown that frags corals for fun. He's been banned to the sump.
I also have a big tang that makes occasional swimming mistakes.

 

[karsseboom]

Looks like a crab.

 

[wonderz]

I reduced lighting. Well, there are two methods i use. Either i would place the sps lower in the tank, or i would attach at the top of the tank, transparent plastic bags (using close pins), to reduce lighting over that area in the tank.

Thank you for the tip. I'll try that if it gets worst.

I have a maroon clown that frags corals for fun. He's been banned to the sump.
I also have a big tang that makes occasional swimming mistakes.

What does the clown do? They try to bite it? And the tang would bump into it?

Looks like a crab.

I might need to get one of those red led to see if that's the case at night.

 

[DNA]

For a clowns it's something in their nature to tidy up around the host anemone.
Mine digs, rolls big rocks about and frags corals.

 

[wonderz]

For a clowns it's something in their nature to tidy up around the host anemone.
Mine digs, rolls big rocks about and frags corals.

oh okay. mine's occy and are relatively small so I haven't seen them do that yet.

 

[fishguy597]

My opinion is the urchin . I don't have a tuxedo but do have a long black spine. that bit Mark looks exactly like what mine does. I'm pretty sure they eat coraline off of the rocks and sometimes the corals get in the way. the only thing I have in common with your stock list is an urchin and a clown and have same thing. I would just keep an eye on it.

 

[wonderz]

My opinion is the urchin . I don't have a tuxedo but do have a long black spine. that bit Mark looks exactly like what mine does. I'm pretty sure they eat coraline off of the rocks and sometimes the corals get in the way. the only thing I have in common with your stock list is an urchin and a clown and have same thing. I would just keep an eye on it.

you know, that's the first thing i search after i saw it. and seems like everyone says they don't cause any problems. so does yours have a habit of biting corals or is it just by accident?

 

[Amphiprion]

you know, that's the first thing i search after i saw it. and seems like everyone says they don't cause any problems. so does yours have a habit of biting corals or is it just by accident?

Doesn't really have to be bitten. They can cause occasional mechanical damage with their spines. Beyond that, the tips of many corals can be relatively soft--it often doesn't take much to snub a bit of it off. As suggested, even many fish can do it.

 

[wonderz]

Doesn't really have to be bitten. They can cause occasional mechanical damage with their spines. Beyond that, the tips of many corals can be relatively soft--it often doesn't take much to snub a bit of it off. As suggested, even many fish can do it.

Oh okay. Thanks!

I guess I never really knew that the tips of the sps are that soft since I never really touched the tip when I move them.

And for what it is worth, I checked it today, looks like it is slowly healing up.

Thanks all for your help.

 

[Amphiprion]

The only way I figured out that they can be quite soft is because I'm a klutz and destroyed many an Acropora axial corallite, lol.

 

[wonderz]

The only way I figured out that they can be quite soft is because I'm a klutz and destroyed many an Acropora axial corallite, lol.

LOL. From your experience, does it grow back relatively quickly? I never thought setosa has axial corallite tho, since it looks pretty uniform throughout compare to acros.

 

[Amphiprion]

LOL. From your experience, does it grow back relatively quickly? I never thought setosa has axial corallite tho, since it looks pretty uniform throughout compare to acros.

They don't have axial corallites--just saying I honed my lame precision skills on nice Acropora frags...

Edit: yep, assuming it was healthy to start with, it was always quick to heal.

 

[wonderz]

They don't have axial corallites--just saying I honed my lame precision skills on nice Acropora frags...

Edit: yep, assuming it was healthy to start with, it was always quick to heal.

Oh okay. Thank you for sharing!