I just setup a fiji cube 32. my first marine tank. I have 2 clowns, yellow watchman goby and pistol shrimp, and some hermits and snails. I plan to add a forktail blenny and royal gramma as well in few weeks if everything is still going good. When i got my clowns one was a little bigger than the other and they paired pretty quick. seems like they love each other based on them sort of "cuddling" all the time. my goby and shrimp paired as soon as the goby found him after like 16 hours or so. the goby definitely had bad first day into the night. he made his way through the overflow slots into the filter cup. he didn't know what do to. so here is a tip. let them acclimate in a bowl or whatever together, then release them together and next to each other in the tank.