Hi I don't know if this is strictly taxidermy but I am trying to get nice white fish bones. I am looking for some advise in how to find and preserve fish bones. I have been working at it for a couple of weeks. I have used fish like Salmon, Sea Bass and Halibut. I am not managed to get many big bones. I am not even sure if they are the type we are looking for. I am working for someone and they want jaws with teeth and bones approx 2-3 iches long. I jsut think they are kinda cool! We have been boiling them in salt water, then leaving in caustic acid, then bleaching in household bleach. This has caused some of the bones to turn a yellow brittle colour. We don;t know what is causing this! Is there any way of repairing them? Your help would be very much appreciated.