I bought a Chinese incubator on eBay for $50. It holds 48 eggs. I collected the 48 eggs I have done tons of reach and ask many questions to other peopl that I know who has incubated eggs. The elder people say they never had a humidity gauge just kept water in it and kept it 99*.. BUT This incubator is celcius I have maintained the temp of 37*c but the humidity has never read want I wanted it too. Or I just don't know what it should be in celcius I have candled my eggs and I have 38 babies growing. I'm very nervous about the last few days to go. My 21 days will be up on 1/31/16. I have no idea what humidity is in celcius. I can not figure it out! I was reading around 60 I have always thought that was to high but my babies are growing. So I thought Maybe the humidity gauge is wrong so I emptied all my water out and left it sit for a day and it still read 60. So the next day I put water in 4 of the little square areas in the bottom. After I did that it raised it to 88 and it's been that since. Today I opened up to candle to check growth and I heard like a light tapping I never heard that before. Could that be chirping? My incubator has a fan in it so I wasn't sure what it was. After I started candling the sound stopped.. Please help me. Should I take them out of the turner and lay on the bottom rack now? And what do I do with the humidity? Please no one judge me I'm desperate and don't want to loose them.