What happened to my nem?

[paperdesk]

I have (had?) a large beautiful Entacmaea quadricolor that has been doing amazingly well. Now I have what is shown in the photo and can't find anything else. That blob is about 1.5" by 1". Maybe more of him is hiding in the live rock?

I don't know what happened, the edge of it looks almost torn like it was cut with a dull knife.

Is it likely that it got caught in my powerhead? If so, what should I do, will it poison the tank? I have carbon in the sump.

My tank is about 10 months old. My specs:
Ammonia 0
Nitrate 0
Phosphate 0
Calcium 440
Alkalinity 11.8
Magnesium 1380
Salinity 1.023
PH 8.04
Temperature 78.4

Over the last 3 days I have done one water change each day. The first day I changed 10%, the second day 8%, and the third day 8%.

Through each water change I have been increasing the salinity a little so it is now up to 1.024.

That's the background, but what should I do right now? Water changes, carbon?

Thanks!

 

[D-Nak]

Based on the photo it looks dead. I would remove it, do a large water change, and run fresh carbon.

Only you'll know if it had a run in with a powerhead. BTAs and powerheads never play nice.

How big is the tank and what are the inhabitants?

 

[paperdesk]

Thanks for the reply D-Nak. I don't know how to tell if it hit the powerhead or if something else happened. The water is clear and no pieces floating around. Odd that I can't find more of the nem though. I'll do a big WC, remove the corpse, and run fresh carbon. Sad day.

The tank is 90 gallon, I have a Green Chromis, Bangai Cardinal, Skunk Cleaner, 2 Sexy Shrimp, Blue Leg Hermits, Snail clean up crew, large mix of LPS/SPS coral.

Ted

 

[kissman]

Make sure its dead, do you gave a QT tank? I have pulled my nem out of my Hydor Powerhead and looked bad for a few days but soon it looked great again

 

[paperdesk]

Kissman, glad your nem survived! Yes, I do have a QT, I was thinking about putting it in there, couldn't hurt! I see you're in Waynesboro, VA. I lived in Rapidan for a number of years (between Cupeper and Orange). Beautiful part of the country!

 

[kissman]

Yes as long as there is nothing in QT to kill him or futher him off. Rapidan is nice, I love this area. You moved kinda far! LOL! I knew it was possible that the nem would walk till he found his happy spot. Been in the same spot for over a year. Two weeks ago I added about 12 SPS and what do you know he has moved 3" to the left. WTH. Hope thats all he does. I put him in before adding any coral. Good luck

 

[paperdesk]

Is it possible for a large RBTA (spread of 5-6") to become a 1.5x1" blob? I looked at the foot and it seems complete.