So I suspected my killer was that crab. I caught his ass threw him in the sump. After his new home, I bought a sand goby, a cleaner wrasse. Two days later, not a trace of body. Checked outside of tank. No suicides. What do you think is going on? Do you think my blue throat trigger is hunting at night? This is bizarre to me bc honestly my tank parameters are mint. I'm keeping expensive tangs alive with no problem. It's bothering me alot. Not a trace of body parts anywhere.