Quote Originally Posted by python.princess
well, it's a 55gal. i checked all the chem levels, salinity, temp, etc and everything is good. we have live aragonite as substrate as well as live rock. the light is "ocean sun" 10,000k, which i was told was bright enough for the anamone. tank mates include yellow-tailed blue damsels, an algae blenny, a maroon clown, and 5 cortez crabs. they are all flourishing.
Unfortunately whoever told you that 10K on a 55g was enough for a long tentacle was enough is mistaken. These particular anemones need Halides to survive as they use photosythsis to gain more nutrients. They also require VERY deep sand beds in order to achor is. They also have ZERO tolerance for any organic waste...which means if you don't have a protein skimmer and change water weekly it won't survive.

Finally, it you can get it to anchor and open up it will pry eat all your other fish and crabs (except the clown).

Sorry I don't have better news.