First anemone!! Knowledge and help please!!!

[reefnewbi]

Hello everyone! So here's just some background, i currently have an established 3 gallon picotope. stock is 2 black australian clownfish(paired), 4 hermit crabs, 2 turbo snails. Corals consist of a torch,a green star polyp, a red/blue mushroom, and a kenya tree. everything is good in this tank. Now for the issue. I recently set up a 55 gallon tank with lots of live rock. It cycled pretty fast actually within 3 weeks. I bought an anemone from the LFS. they told me the name, but i cant remember. Regretably, i thought that anemones were pretty much the same concept as corals and BOY WAS I WRONG, i was not aware they needed a mature tank and will not make that mistake again. from the research i did when i got home, my sandbed is not deep enough. I have it in between 2 rocks in a pile of sand and gravel. Also, i did not know anemones move, which is another issue. I dont really blame the lfs because i was not knowledgle on anemones. but im gonna try and make it work. Basically, i just want to know what type of anemone it is and what flow and lighting it likes from your experiences. Any help would be greatly appreciated

I'll show a picture of my 3 gallon. also the pictures of the anemone are a couple hours apart and it seems to be unburrowing :/

 

[Trex]

It appears (( though not 100% sure )) it be a type of "tube" anemone. It is not a hosting anemone, and they have been known to eat fish -- including clowns.