What do you call perfect?
Perfect according to you might not be perfect for your animal. For an easy transition I always recommend people to provide an environment as close possible to the one provided by the breeder (at least until the animal reaches 200 grams)
If you have not done so, switch the BP to a 6 quarts tub max until it reaches 150/200 grams. (Security is the number one priority for hatchling that small)
Use aspen as bedding. (Provides additional security)
Provide a hot spot of no higher than 86/87 (in a tub that small to high of temps do not allow much room to get away from the heat if the animals feel the need to)
Offer a 6 inches plastic flower pot saucer as an hide. (Provide tight hiding place = increase security)
Once you made the switch wait a week and offer food in the tub, offering a LIVE mouse hopper.
DO NOT handle your BP until it eats for you 3 to 5 times and keep it to a minimum until the animal is a bit bigger.