I don't know what I'm doing wrong? I sanded for probably 5 minutes with 800 and it never did just get pretty and clear. so I went up to 1500 and then 2000 and it just doesn't seem like it gets any clearer. but when I look at the other one in comparison I can see a little different but that's a lot of work for barely noticeable LOL
You need to go past 800 grit, especially if you're working on transparent acrylics. It doesn't start to look good until you hit 1500 grit. After that I hit it with the black and then the green on my buffer and they look fantastic. Once I'm done buffing, I hand polish with Simichrome (tissue paper, toilet paper, paper towel, microfiber, whatever you have) and I'm good to go. I'm sure Flitz and similar products do a fine job as well.
I can get away with sanding to 800 then going right to the buffer (start with black on sisal wheel, hardly any pressure at all). After that I move to a cotton sewn wheel and the green compound, very light pressure so you don't burn up the scales.
Anyway, go 400-600-800-1000-1200-1500....Buff with black and green (in that order) very little pressure, then hand polish with Simichrome or Flitz, Maas, etc. If you don't have a buffer, then just buy some finer sandpaper 2000k-12k. Use water while you're sanding. A small spray bottle or spirtz bottle works well.
If the scales have some deeper scratches or marring, then use 220-240-320grit paper with water, then switch to the finer papers.