Yea, it is soooo pretty but pretty don't get it if he will kill others!! I don't know if anyone else has this, but I have a separate "extra" 10 gal. tank ( Critter Tank ) that has a few little things in it that I don't want in the big reef tank like... 4 hermit crabs that got way too big over the past year, a couple of rock mojo anenomes that were on small rocks, a cucumber, a lg. brown hairy looking crab and some small shrimp, some with green belly's that I haven't been able to ID (they are small & fast) and now these conch's! The tank has been set up with LR for about 1 & 1/2 years - Mechanical filter & undergravel filter mainly for hiding places and so far, its not been a war zone!! I have only lost one hermit crab and one flat red rock crab over the last year. I have plants & around 5 lbs. of LR in there also with lots of hiding places. I just don't have the heart to kill anything except bristle worms! I feed them everyday and do water changes etc..