What kind of shrimp is thiaminase ridden ? I feed krill as a staple to my bichirs I thought it was lean healthy good stuff for them.knifegill;3350493; said:Treat? Usually that designation is reserved for fatty or thiaminase-ridden foods like shrimp. Crickets are high in protein and low in fat. I'd have no problem recommending them as a staple if gutloaded.