I saw that blue lobster at Re*B ..very nice impressive color but I didn't get it cause not really sure about its behaviour !
BTW, I have one cuke - tiger tail. This fellow is not really efficient in cleaning - hiding all the time. I know those donkey dunk are great but they don't look very appealing so I am thinking of other alternatives, maybe serpent star. And I am also not sure whether it is safe to have 2 type of cuke, will they fight ? otherwise I will have to clean up the guts they throw out.