Ok so im making my first incubator ...due to the expensiveness i can not afford a good incubator so i have decided to make my own im pretty much fallowing instructions from several different incubators on this website. but i run in to a issue...... what kind of light bulb?!?!?!? can i use a red heat lamp light bulb or will it burn the eggs? or should i just use a normal one like for a lamp ??? and one more thing do i really need a hydrometer i have been looking EVERY WERE for one but Walmart does not have then or target or pets smart is there a way that i dont need one?. i appreciate that help!! thank you!!