I love mine... they grow slow... absolute beautiful colors... and you dont have to have MH! I love my corals, I think I have a nice assortment of beautiful stuff, zoas, palys, dendros, duncans, candycanes xenia, ricordia.. in every color... but the first thing people notice in my tank... is the TUBE anemone....
a friend of mine just came home from iraq after 2 yrs and saw the tank .. first words... "OMG is that a REAL anemone?"
Thats all he cared about! So yeah, I like it, and if I could, Id have two of them in my tank.
Ok now the problems...
they can eat stupid fish- stupid fish= slow moving, small, that swim right into its tentacles (although mine has never eaten a fish, it recently tried to eat my nudi, and the nudi died.)
thier tentacles get LOOOONG~ one of my corals was not extending very well, I have two of the same coral (dendro) within 4" of eachother ... one looked great.. the other not so great. I couldnt figure it out. One night, it caught the corner of my eye and from the side angle of the tank I could see that the very very tips of the anemones tentacles (almost transparent they are so thin at the tip) was barely brushing my dendro!!! AHHHHHHHH
So I moved the dendro and hes fine. but, you have to be careful.
They do secure themself to thier surroundings like a tubeworm so its not easy to move them once they are 'anchored'
They NEED a DSB for thier monstrous tube.
Verdict:
You can have one but its not a permanent decision ... like most things in a nano... it will outgrow the tank.
buy a real pretty SMALL one. VERY VERY small one. and make him his very own cave/section of the tank where you will not put corals anywhere near it. remember those tentacles reach up, out and all around him.
Good Luck!
Jessica.