I was just wondering about the effects of the O. bimaculoides in a closed loop filtration system ? I was planning on constructing a 125 gallon aquarium with a 55 gallon sump with one or two 'bimac' specimens living in there together. Are these animals easily startled ? What affects might they have on all the live rock and other life in the system... not to mention the skimmer and refugium ? I would really appreciate any feedback on this ink issue, it's plaguing my mind !