Kuba

thanks for the help, but i figured out how to do it, and it wont be so expensive, i will be making my own oxygen through the electricity through water trick

For an experiment i am trying to test if the amount of oxygen affects the growth of a tarantula. and i was wondering a 2 things... 1) How could I measure the amount of oxygen in the container. I am making a airtight container so ensuring contamination won't be a problem 2) How could i supply the higher level of oxygen in the tank, and keeping it at that level. I dont have that much so good but not costly ways would be best. Thanks