Hi everyone, this is my first time using great stuff foam for a background. My question is, after the background has cured and it is rock solid( 20-24 hours) I was left with a great background but when I stood it up and looked through the back wall, the tank had a bunch of yellow, oily stuff. Is this safe/normal? Will I need to redo it? Hopefully the attached pics help. Thanks in advance! Ps this is for a crested Gecko and is an exo terra 18x18x24. I would like to get this siliconed later tonight if possible.
