Nudibranchs, sea slugs, and sea hares ?

Alright, i was just in at the LFS and they had these gorgeous nudibranchs, I forget what they named them, but they were a vibrant purplish color with a yellow tree like thing off their back, and yellow "antennae".  I was curious on how hardy these little guys are, and what they would eat.  I swear I saw the exact same nudibranch on discovery that chased down another slug and slurped itin very quickley.  Also, are they toxic to fish or anything?  Now for all forms of sea slugs in general, are they fairly hardy?  My system has been up for over a month now, it has live sand from various sources, live water from a few sources, live rock from various sources, a lot of base rock, 600 watts of lighting, and it is a 125 gallon with a refugium.  I am flowing 1400 gph through the whole system.  All my invertebrates are alive (I only lost 1 snail and 1 hermit out of 40 snails and 10 hermits.)  Coral that came in on the rocks (zoanthids) are growing, and doing well, as well as a few star polyps, and my anemones are doing great that came in on rocks.  I even have a mussel on a rock that has been alive for the duration that my tank has been up.  Anyway, I was curious what you guys think I should get to help establish my tank some more, I do have some green chromis in for the fish population.  I really want one of these nudibranchs, but I don't want it to just die, but I figure if the snails can survive, it possibly can too.  Well, I am sure I got way off my tangent in this post, but I hope you get the gist, or I will edit it :).  Thanks,

Ed Parker

I really don't think it will live more than 2 months.  Sorry.

Adam

I've had mine for 4 months and it's still kicking!

Here is a link to the picture of the nudibranch they had to offer, its scientific name is Chromodoris bullocki

  http://www.thinbluelinesafari.com/DTM04070501U/pages/Nudibra nch_Chromodoris_bullocki_03.htm

Speaking of Nudibranchs in general, it appears that Sprung agrees with Adam.  Coral eaters are Reef Safe.  On page 94 of Invertibrates a Quick Reference Guide under Phyllodesmium Desirable/undesirable features it says "Ornamental, Destructive or harmful to corals.  Reef Safe."  Sounds like an answer Adam would give.  As long as it doesn't hurt algae, let it be.

By the way Phyllodesmium is the one Nudi that Sprung says can do well in Aquariums.  He says they can live years and even propogate.  Problem is they eat soft corals.