Hi All, I have some deer skulls that’s I’m working on (for myself, not for customers) I’m relatively new to it and have been using beetles for the last 4 months, the colony seems to be up to a good size now and can work through a skull in 3-4 days. There are still some scraps here and there that they leave behind but they are doing a pretty good job. I use a bucket heater in a 5 gallon bucket with a temperature controller set to 120F with a little water pump to circulate. I use blue dawn (about 1/4 cup) and occasionally add some ammonia (about a cup) I change the water every couple days at the start when grease floats at the top and then every 4-5 days when it’s just cloudy. The mule in the pictures was in for about 3 weeks total when I pulled it out as the water was staying clear for 3-4 days. I did brush on some 40 volume and basic white powder, then plastic wrap and let it sit for a day then put it in the over at 170f for 45 mins to get some heat to it. You can see in the pictures, some are when the skull is wet and others are when it is dry over night. Does it look like there is just some more grease that needs to come out or am I missing something? Does someone have a picture of what the water and skull should look like when it is ready to come out of the degreasing bucket?