So three out of my five new snakes are still not eating. It has been 3 weeks since there last meal (2-28). One female lost around 30 grams (940-910), another male has lost 30 grams (840-810), and the last female has lost 20 grams (620-600). They have all defecated since their arrival, and were on somewhat of a full stomach when i got them. When should i start stressing about this? They were all on live before, I am trying to feed f/t, but the previous owner said that they had all taken f/t before.

The male I am not too worried about because he is proven and he is around females. The two females need to eat, so I can put weight on them, so that they can give me hatchlings (fingers crossed) next year.