whats going on with my corals

jpierson77

New member
What is going on looks like the skeletons are rotting on these two pieces. The tissue is ever so slowly retreating and in spots where it has receeded the skeleton looks like its rotting. any ideas.
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Sorry about the pics trying to get some clearer shots but as of now nothin. nh4,trites 0 trates are trace, alk 9-10dkh, 420-430 Ca, Ph 7.9-8.1, po4 havent tested but will do that now, 2-400 watt 20k xm's. As of now it is just these two pieces and i have about thirty in the tank. Ill try to post some better pics in a few minutes
 
One thing you need to do when your lights go off...after they are off for a couple of hours....get a flashlight and go looking for crabs or anything eating at the tissue of the corals....this you need to do...with that kind of damage it could be a crab

Also...pics are still kind of blurry to notice red bugs or AEFW's...i doubt red bugs did all of that damage...but the way the tissue looks smoothed and sickly I would suspect AEFW's could be a possibility but cant tell with the pics....GEt a magnifying glass and a pictures on RC of AEFW's on and off the corals.

Any ALK or temp swings??? Also...the ph could stand to go up but that isnt what caused this...this looks like a predator of some kind. How many other Acros you got?
 
I will check it out after the lights go out. Im really fearing the aefw at point. Looking at some of the pics online it appears that the tissue gets oval light spots on it with aefw. Only the tissue recession form the bottom appears to be happening. I have not seen any of this on the two affected pieces. I have roughly ten-twelve acros in the tank and these are the only ones that look bad. One interesting thing that i read was that validia is one of the most affected, the big brown piece is a validia. Can i see movement on the coral if it is aefw or red bugs? Or would i have to take the coral out and use some sort of magnification? Two more questions, these pieces are grown over large pieces of live rock how is the best way treat this. Lastly this recession has taken place over two months or so is this a common pace for aefw?
 
Have those pieces always been brown or just started to turn brown over the past couple of months? Looks like a AEFW.

Agree with what Serioussnaps said. Flashlight after lights out and check to see if any 'baddies' are out making mischief.
 
Were colored when they arrived to me back in march, and slowly over the next week they browned out. I think mybe my tank was just too young at that point. SO they have been brown for awhile. Barring soem sort of trouble maker and its aefw, then what is the best way to go about it as they are mounted to my large live rock. With that said i cant really take it out and dip it, nor can i remove the whole piece. Any suggestions.
 
Ok I busted out the mag light tonight and looked things over. I could not see any of the oval bite marks I have seen in the pictures in aefw discussions nor cold i see anything that might resemble a aefw. I did notice a fireworm coming out of a hole at the base of one of the affected pieces, could this cause the damage I am seeing?
 
I had the same problem for awhile. I also thought I had AEFW's and threw away a whole tenuis colony. Then I checked my parameters. My CA, Alk, and Mg. had all dropped. It seems the product I had used to dose for almost 4 years time had changed, because I switched products and my corals all healed from the "spots". In fact, my corals have never looked as good. My numbers are rock solid again.
 
MY TANK HAS BEEN A LITTLE BIT UNSTEADY BUT RECENTLY I HAVE GOT IT UNDER CONTROLL MAYBE THIS WILL TAKE CARE OF IT. ALL OF MY OTHER ACROS LOOK GREAT, I GUESS ILL WAIT IT OUT OR AT LEAST UNITL I GET MORE CLEAR EVIDENCE OF WHAT I GOING ON. HOPEFULLY THIS DOESNT COME BACK TO HAUNT ME! I JUST REALLY DONT WANT TO STESS THE VALIDIA AS I HAVE NOTICED THE FIRST PURPLE TIP IT HAS EVER HAD THE OTHER DAY.
 
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