Here is my experience of this anemone.
This was the day when I introduce the nennie to my tank.
Day time:
During day time this anemone seems harmless. I saw on several occations fish touching it with no after effects. The whole stem with the mouth is drawn back inside the body.
Night time:
This is where the fun starts.
The stem and disc is out (Feeding Mode)
The tentacles is longer and in the open.
I feed the nennie every night. The stem and disc only comes out at night. I feed it krill or stint. It has the same reaction as any nennie, the long thin tentacles pull the food to the mouth. The reddish part of the body does not transport the food to the mouth. I think that part of the body is to draw the prey to the tentacles. There is little white balls that might be seen as fish eggs.
Once it has taken the food, it draws the dics back inside the body.
Observations:
During day time, the body is big about 100mm to 150mm in diameter and a disc shape. During night time, the body is around half the size and more off a baloon shape.
It is right next to button polys and the polys touch it constant during day time. The polys does not react to nennie at all.
I have seen my arrow crab steel food out of it's mouth. I have seen the Copper band stolen mysis from it's tencackles. All this happens during day time.
I have lost the same arrow crab during night time. The arrow crab changed it's skeleton. I found that night the skeleton on the nennie and the crab sitting right next to the nennie. The following day the arrow crab died.
The next casualty was my cleaner shrimp. I also saw it close to the nennie. It's tentckles looked like you burn it with a flame. It was black on the tips an very short. The shrimp never came close to the nennie except for that night. He aslo died during the next day.
The third casualty was my Copper band. There was a funny mark on it's body. He also loved to swim neat the nennie.
All my casualties was of night dwellers. The rest of my fish are still fine. The hide at night.
Conclution:
This nennie is dangerous only at night during hunting time.
The dangerous venum sits in the little ball on the body.
The venum does not dilute in the water colum. (Therefore not one of my corals or fish died in my tank thus far)
The venum is off a jelly tipe. (I handled it in the beginnig. I went underneath the live rock and was difficult to feed. I put on gloves and sort of drag it out underneath the live rock. It have not attached at that stage. My gloves were very slippery as if you put a jelly on the gloves. Remember nothing died from that).
It is a very peace full nennie as long as you stay away at night and you do not irritate it.
I Have the following in my sytem:
Feather star fish, Zoa's, Mushrooms, Finger Leather Coral, Frog Spawn, Torch Coral, Button poly's, Sun Corals, Star polys, Gorgonian, Pesilla Pora, Acropora, Disticopora, Ricordia, Tube Anemone, Chilly Coral, Spunges, Rock anemones, Cabbage Corals.
Fish and Invertabrates
Solar Fairy wrasse, Banna Wrasse, Midas Blenny, Clown fish, Lawnmower Blenny, Bi-colour angel, Pajama Cardinal, Fire Cracker, Hermad Crabs, Snails and Sea stars.
All off this share the same system and live happely ever after.
A full tank shot.
Attached an articale from the web.
The American Journal of Pathology, Vol. 171, No. 2, August 2007
Copyright © American Society for Investigative PathologyDOI: 10.2353/ajpath.2007.060984
A Protein Toxin from the Sea Anemone Phyllodiscus
semoni Targets the Kidney and Causes a Severe
Renal Injury with Predominant Glomerular EndothelialDamage
