Please, do us all a HUGE favor and don't even consider reptomin turtle sticks. Those are a terrible thing to feed a snake... no offense, just saying in general. I know I saw a guy selling garters on kingsnake saying he was feeding them that.... I cannot see that being anywhere near a good thing for a snake to be eating. It's turtle food for a reason, it's made for turtles, which are omnivores, to eat. Snakes are strictly carnivorous and they should only be eating things made purely of... well... flesh and bone!

I seldom have problems with easterns eating, how are you offering the guppies? try a really shallow white or clear dish so that the fish have to flop around. If you can find one, try scenting a fish or worm with a frog or a tadpole. You could also try throwing the fish into the cage on the ground in front of the snake... all the flopping really gets them going.