You can use that as a hatcher, and no you don't need extra air holes the ones on the bottom and top are fine.Ok silly question for Sally Sunshine, or anyone else! When you are using a separate hatcher can we use a LG still air incubator and if so do we need to open it once a day during lockdown for air exchange or do you keep it completely closed and just put more air vents in the top? My son wants to try having a separate hatcher and I have not made the decision yet on which type of incubator we are going to upgrade too. I'm thinking Brinsea but I just looked at another that I am debating so for now we are using our hovorbator and thinking about the old LG for hatching this round! We want to have our new set up for the Easter hatch but want to practice now just in case!! Our eggs go in lockdown tomorrow night and I have the LG ready just need to know if we leave it shut or need to open for airflow?? I know silly question but this could actually explain a lot about our past hatches lol!!!