Here are a couple things you can try.
You might consider taking a large towel and get it wet then ring it out. Place it inside the cage at the hotest place in the cage, then place another ringed out wet towel over 3/4 to 7/8 of the top of the cage. As the towel inside the cage is evaporating it will increase the amount of humidity inside the cage. The wet towel on top of the cage will help to lock the humidity inside.
A few years ago someone e-mailed me with the same scenario. He didn't have an incubator, so I had him build a styrofoam box inside his tub where he could keep a temp of 89 degrees. He built this box made out of styrofoam and placed a shoe box inside of it using a 1 to 1 ratio by weight between water and vermiculite 250 grams of vermiculite to 250 grams of water, make sure you drill an 1/8 " diameter hole at each end of the box about an inch from the top of the box. Once the substrate has reached 89 degrees place the eggs into the shoe box. Remember that the top of the eggs must stay the top of the egg, orientation of the eggs must stay the same as when they were layed. bury the eggs about half way into the substrate and place the lid on. The humidity inside the box should keep the humidity perfect for incubating ball python eggs. The styrofoam box should help to maintain the constant temperature needed to incubate the eggs.
If you have any questions please feel free to call me at 408-981-6694.
Best of luck
Brian Gundy / For Goodness Snakes
Reply With Quote