I thought I responded to this…
Hope it is not too late. Blue images are usually a sign that your plate is underdeveloped, so start there. Maybe increase development time (4 hours?), change light sources (try the sun), or use only one layer of rubylith (it is really rubylith right? Not red gel?).
The fog could be caused by many things, and it is hard to tell without a picture. It might be that you are overexposing your images. It might be that you are using too much iodine, I would suggest a light rose, but a dark rose should be ok.
Finally, what fix are you using? I don’t think this could cause fog, but maybe…
good luck