This is my first time hatching eggs in an incubator - I hatched eggs one other time with a broody.
I made a homemmade incubator, but don't have any idea how much ventilation is needed for oxygen after day 18. I'm assuming I have enough now, especially since I am also opening the bator 3 times a day to turn the eggs. With Phx, AZ being so dry, I'm thinking I'll want to use as little ventilation as possible those last 3 days in order to keep the humidity up, but don't want the eggs & chicks to be oxygen deprived.
My incubator is made from an aquarium so there is no drilling holes in the sides - I have a slit at the top that can be adjusted - see pic :
The current vented area is 3/8" x 8". Is it adequate? Too much? Do I need more than that the last 3 days? Do I need an area on both sides or is the one side fine?
The aquarium I'm using is 19" long, 12" tall, & 12" deep and does have a fan installed.
I made a homemmade incubator, but don't have any idea how much ventilation is needed for oxygen after day 18. I'm assuming I have enough now, especially since I am also opening the bator 3 times a day to turn the eggs. With Phx, AZ being so dry, I'm thinking I'll want to use as little ventilation as possible those last 3 days in order to keep the humidity up, but don't want the eggs & chicks to be oxygen deprived.
My incubator is made from an aquarium so there is no drilling holes in the sides - I have a slit at the top that can be adjusted - see pic :
The current vented area is 3/8" x 8". Is it adequate? Too much? Do I need more than that the last 3 days? Do I need an area on both sides or is the one side fine?
The aquarium I'm using is 19" long, 12" tall, & 12" deep and does have a fan installed.