p in these tank designs that reduce turbulence and damaging contact with the tank walls ( Kittaka , 1997 ; Calado et al . , 2003 ; Raskoff et al . , 2003 ) . This is particularly important in crus - tacean larviculture as many of the zoeal stages of crustaceans have fragile appendages that can easily be damaged , affecting their capacity to feed ( Calado et al . , 2003 ) . Therefore , the MPK may prove to be a versatile design for a wide range of fish and larval culture studies , for the marine ornamental sector . However , systematic testing is needed to prove its value in these areas .