beetle cage smells sour

[trbruning]

hi everyone ive had a beetle colony since about novemeber, had um in a metal garbage can and had the prdiectable smells of bugs and rotting meat but i recently transfered them into an old chest freezer so they could  reproduce more and have more room. they are being heated by a 25 watt light bulb at 78 degrees and i have an air vent in the lid of the freezer but when i open the lid the smell is far far stronger even when i dont have a skull in there. its just a nasty sour smell that doesnt smell the same as it did when they were in the can. any idea on what it could be?

[Toxic]

ammonia smell probably, need to increase your ventilation

[trbruning]

alright thanks ill cut another port into the lid and mayb throw a small fan inside to get the air moving

[RBlack]

"ammonia smell probably, need to increase your ventilation"

ditto

[remington 1]

Ditto. More ventilation.

[Voltrax]

Ditto. And check humidity.

[skullfreak]

make sure to always set your skull on something each time you put on in!you might be getting some brains down in the bedding.