Question for large colony acro owners

[niftyjosh]

I run a fairly low nutrient system supplemented by AA and assorted small partical food.

Polyp extension on all my acros is normal, color is a bit pastel, and growth is normal.

One of my good sized tables has several discolored spots on its underside. I have dipped this coral and random others several times using a few different dips on numerous occasions and found no pests. This was expected as I have a extensive dipping routine.

These discolored spots still have flesh but are only slightly darker than the actuall skeleton. During feeding, mass amounts of filaments appear on these spots.

Is this a normal behavior? Anyone else experience this? Perhaps I should boost my nutrients a bit?

 

[Havok]

What are you dipping in? Bayer?

 

[niftyjosh]

Coral Rx, Bayer, iodine, and revive.

Before anything goes in my tank, it gets cut from the plug, Levamisole, then Bayer, then interceptor. I inspect and blast them with a Turkey baster before during and after ever dip.

 

[niftyjosh]

Clearest pic I can get with both spots having the filaments out.

 

[evolved]

Do you have a similar pictures without the mesenterial filaments out?

 

[niftyjosh]

I'll get one later but the spots are just slightly lighter than the surrounding skin. Still has the same texture.

 

[niftyjosh]

Retested everything just now and all levels were pretty cool except Ca which was a bit high. About 20 mins later I was pondering what the problem could be and realized I had not calibrated my refracto for...well I couldn't even remember the last time I did. Recalibrated, my tank was reading .31. Not, awesome.

While I was resolving the situation, I saw my foxface nibbling the filaments which I'm sure isn't helping the situation if not causing it. I guess I'll keep an eye on it. Didn't know if this was a regular thing for tables because my pc superman table often has filaments coming out of the bottom while feeding as well. The only difference is that there Is no discoloration.

 

[jackson6745]

These discolored spots still have flesh but are only slightly darker than the actuall skeleton.

the spots are just slightly lighter than the surrounding skin. .

Which is it

I see a light spot or 2 looking at the pic. A healthy colony should not show light spots of flesh. This could be AEFW or the beginning to RTN/STN. Can't really tell from the pics though.

 

[niftyjosh]

Slightly lighter for both. Took it out and dipped it again last night, found nothing again.

Which is it

I see a light spot or 2 looking at the pic. A healthy colony should not show light spots of flesh. This could be AEFW or the beginning to RTN/STN. Can't really tell from the pics though.

 

[turbo21]

With larger colonies eventually flow gets tougher to get to the bases. Also lack of light on the underneath will cause the underneath to go totally brown

It looks to me like detritus might have settled in that are and killed some flesh because flow was not getting to the area

 

[JBNY]

I would keep an eye on it, but it might be just fine. I have taken out basketball colonies from my tank and more than a few times the underside has areas that are not uniformily colored.