Calin, regarding your scales, I personally would remove them from your current set up and repack them in baggies (freezer bags) covering the scales with slightly damp ground sphagnum moss and coarse sand (what I use). Then place in a fairly warm location and cover with an old towel to keep out the light and to give it a little pressure. Check the next day for excess moisture--if there is it will show up as tiny little water droplets on the inside of the bag. If so, open the bag and recheck the next day. Don't pack away any scales showing any signs of spoilage if you decide to start over with a repack. The choice of media is pretty flexible but moisture content is critical.
I would like to hear if somebody suggests you just cover these, because I'd be tempted to try that too. but it seems to be a waste of space. Your scales look tough, so just try to save what you have!