So I am fairly new to the hobby, and I recently purchased a few slings. As of right now I have not seen any sign of activity from atleast 2-3 of my slings, and I am hoping they did not escape. My G. Pulchripes slings are ~1in and I made the ventilation holes no more than .25in in diameter along the sides. Were these holes to large; allowing the slings to squeeze through? Any suggestions for acceptable hole sizes for ventilation when raising slings?