So i'm bringing this back up to get some input. The skull looked fantastic, still does really. However i've noticed that in the last week or so its started to yellow. I'm assuming this is because it wasn't degreased enough. Being my first one, I thought I had done a sufficient job, clearly not.
My question is, can I put this thing back in warm soapy water to continue degreasing at this point without damaging the skull? I'm assuming its fine, but I thought I would check first. Also, how long should I let it soak to properly degrease? I picked up an aquariam heater from a friend so I can keep the water at whatever the appropriate temperature is for as long as I need.
Any input is appreciated.