Great advice as I was thinking of getting two sexy shrimp, but I'd hate to see the cleaners hide. I do like the corris though so I'm not sureCleaners should be fine although they may become reclusive w/ a potential predator in the tank. Small shrimp such as Sexy and the small shrimp online vendors sell would be on the menu. When online vendors list a shrimp as "small" they really mean tiny. Nass should be fine as the only time they're out is when easier food is available.