Anyone ID this critter on my SPS?

[IPT]

Best picture (and only one actually) I have. I am having some issues with a few pieces in an otherwise healthy tank. I have been reviewing macro photos looking for bugs or a reason and noticed this dude. The coral has lost polyp extension over the last few weeks (so have a few others pieces and a handful even have some STN at the bases). I don't see any other critters in photos of this coral.

 

[Gumbies R Us]

#reefsquad

 

[Rocks reef]

Possibly an AEFW (acropora eating flatworm)
Do you have any way to dip the acros? Potassium Chloride works great for SPS

 

[IPT]

Possibly an AEFW (acropora eating flatworm)
Do you have any way to dip the acros? Potassium Chloride works great for SPS

I think the flat worms are more broad and wide. These are fast, seem to be almost clear with a white or grey pattern. I also don't see any bite marks, just polyp retraction, and now on a few frags STN starting from the base up.

 

[IPT]

Got better pictures. I imagine this is why I lost polyp extension on several pieces while others are colored up and looking amazing. They are pretty fast when they move. They are about 1/4 of the size of a regular pod.

White or grey bugs? Don't look like the black or red bug images I've seen. Am I correct in understanding that anything like (pod or otherwise) this crawling on healthy Acros over living tissue is no good?

 

[Featherweight]

Amazing pictures, does look like a pest bug

 

[Justfebreezeit]

Great pictures. Hopefully someone can help ID these.

 

[jbano]

Looks like bed bugs

Maybe copepods? You have some good magnification going on there..

 

[vetteguy53081]

Best picture (and only one actually) I have. I am having some issues with a few pieces in an otherwise healthy tank. I have been reviewing macro photos looking for bugs or a reason and noticed this dude. The coral has lost polyp extension over the last few weeks (so have a few others pieces and a handful even have some STN at the bases). I don't see any other critters in photos of this coral.

Gray bugs. Wrasses such as yellow coris, six line as well as springieri damsel will eat them

 

[IPT]

Gray bugs. Wrasses such as yellow coris, six line as well as springieri damsel will eat them

Is there a difference between what people are calling grey bugs and what people are calling white bugs?

Recommended dosage of Interceptor for approx 140 Gal of system water?

 

[Slack Tide Reef]

I believe white and gray are the same just called different by different people. I did 11.5 mg for about 50 gallons.

 

[billyocean]

Do they have legs? The newer kind of aefw will look like rtn but a microscope view would show better. If they have legs then its not a flatworm

 

[vetteguy53081]

Is there a difference between what people are calling grey bugs and what people are calling white bugs?

Recommended dosage of Interceptor for approx 140 Gal of system water?

Same classification

 

[Slack Tide Reef]

Do they have legs? The newer kind of aefw will look like rtn but a microscope view would show better. If they have legs then its not a flatworm

He said they move fast.
They are the white/gray bugs.
If you do a search here on the forum there was a coral farmer that posted microscopic images. They look like pods.

 

[billyocean]

Those little newer aefw are pretty quick. The regular aefw are much slower. Not saying its what they are...just saying.

 

[IPT]

Do they have legs? The newer kind of aefw will look like rtn but a microscope view would show better. If they have legs then its not a flatworm

I think they do have legs. I'd imagine a Flatworm would move fairly slowly, no? These guys move fairly quickly and seem to make pretty sharp turns.

I do suspect they are the grey or white bug mentioned.

 

[billyocean]

I think they do have legs. I'd imagine a Flatworm would move fairly slowly, no? They guess move fairly quickly and seem to zig and zag.

I do suspect they are the grey or white bug mentioned.

Its probably bugs. Interceptor will do the trick if so. The newer aefw didnt leave the signs of regular aefw though so it was hard to notice other than what looked like rtn. They also laid eggs sporadically and no round bite marks. You most likely wouldnt be able to see them as easily as that picture shows either.

 

[Rocks reef]

Do they have legs? The newer kind of aefw will look like rtn but a microscope view would show better. If they have legs then its not a flatworm

They look like they have legs… similar in shape to an amphipod.

 

[Rocks reef]

Its probably bugs. Interceptor will do the trick if so. The newer aefw didnt leave the signs of regular aefw though so it was hard to notice other than what looked like rtn. They also laid eggs sporadically and no round bite marks. You most likely wouldnt be able to see them as easily as that picture shows either.

I agree with an interceptor treatment

 

[vetteguy53081]

While I recommend interceptor as a last resort, interceptor best for black bugs. Dont see any in pic but CoralRX generally effective with other bugs. Other challenge you will face are eggs if any present and which dip will not affect them.

1. You need the 51-100lb (23mg) plain interceptor (not plus)
2. 1 pill per 100g at a minimum
3. Treat each week for 3 weeks