Maybe reliable, but way too pricy for me.

I don't think where Petco/PetSmart gets their f/t rats and mice from kill them ethically. I used to buy from those pet stores and when the rodent was thawed out the whole head and some of the body would be soaked in blood, like it was killed from being smashed around.

Now I get from a small, family owned pet shop that kill them with CO2 and when thawed out not one bit of blood on the rat.