I added a yellow sea cucumber to my 40 gal tank two months ago today. I added it to a corner of one rock and it moved about 6 inches away and has stayed in that general area since. This morning, I noticed it had split in two. I've heard that they only split/reproduce asexually if they are happy and well fed, but I have concerns about whether it's eating since it hasn't moved from this one area of one rock. Anyone know how I can tell if it's doing well or if this is a time bomb? Is it true that they release toxins that can nuke a tank when stressed? I'm not sure what to do...