Not sure exactly the age maybe a few months, he weights 10 grams. temp is staying between 79-81. and humidity is at 70. to day when I came home for lunch I put 2 in the tub and let him go. Like you mentioned GREENLEADER49. Came back after work and they were gone, I don't think they went in the substrate (ECO-EARTH). So I added 2 more and went to the gym and one was left. I did pick you some Super Reds, since the night crawlers seemed to big for now.