Favia tissue loss

Jeto2004 · Jan 20, 2020

I have this Favia in my tank for 2 weeks and over this time I seen some receding tissue on one edge.

The affected heads show polyp extension more than the rest of the colony

When I got it I did a iodine dip (Seachem)

Haven’t target feed it yet.

Any suggestions course of recommended action?

parameters:
Tank is 5 month old

Alk 8.0
Cal 462
Mag 1349
pH 7.8
PO4 0.01
NO3 0.2

Fishy212 · Jan 20, 2020

Are you still light acclimating it? If not move it a bit higher for some more flow

ScottR · Jan 20, 2020

What other corals are in the tank? What is your fish/invert stocking list? Are you sure isn’t wasn’t like that when you got it? From what I see, I wouldn’t be worried if it doesn’t recede further. They can heal.

Jeto2004 · Jan 20, 2020

Flavia sits at 90-110 Par on the sand bed, just recently increase intensity of radions to get my lighting tuned in.

As for corals, currently just a chalice and a small hammer coral and rock flower anemone. These are my first corals overall. They are all a good foot apart.

As for stocking list:
Pair of clown
3 Purple Firefish
Yellow Wathman Goby
Lawnmower Blennie

Clean up crew:
Dwarf Ceriths, Florida Ceriths, Nerites, Nassarius snails, Blue leg hermits, Red leg hermits, 2 Emerald Crabs, 2 Cleaner shrimp.

The coral certainly had rough edge were I know see the tissue loss, but definitely more tissue loss over the last 2 weeks.

Decided to run some carbon just in case - any other action I should take?

Braves Fan · Jan 21, 2020

It looks healthy ,, I am with ScottR ,, I wouldn't worry about it just yet , just keep a eye on it ,, the only thing I would suggest and this maybe a reach ,, if I were trying to reach for something :) the edges you are talking about are closer to the rock side of your scape ,, the edges closer to your glass look fine ,, maybe turn the coral ,, put the effected edge where the good edges are sitting right now ,, see if the bad edge starts to improve ,,

Jeto2004 · Jan 23, 2020

Could he be the culprit or is he just grazing because it’s dead tissue?

Braves Fan · Jan 24, 2020

Humm ,, he would be outa my tank :) I tend to think he is the problem ,, I throw some pellet food in my tank every so often after lights are out in the tank ,, just for my crabs and peppermint shrimp ,, if I have any in the tank to get something to eat ,, kinda keep them full so they leave corals alone,,

DSC reef · Jan 24, 2020

I'd sump the crab for a bit and see if that coral heals.

steallife904 · Jan 24, 2020

agree with above. He may not be eating it or anything like that but could be bothering it enough to stress it. Also for me, I have had some LPS do this on the sandbed because the sand was getting on the flesh.

Jeto2004 · Jan 25, 2020

Thanks for the input! Will see if I can sump the little guy for a while.

Jeto2004 · Mar 7, 2020

I see continued tissue loss on just this one site of the Favia, the rest of the colony looks happy and healthy. Now I have seen these sand tubes with tentacles coming out. There are two of these on the side I see tissue loss! My suspicion is that these are spaghetti worms. While I read that these are good hitchhiker could they still be the root cause of the tissue loss? I have seen the tentacles reaching up onto the coral. Any ideas how I can get read of them? They seem to of a burrow in the underside of the coral skeleton.