You can buff them out with Cerium Oxide and a felt pad, but only if they are not too deep. If you can feel them with your finger nail they are too deep.
3M makes disks like sanding out scratches in plexy, but you have to buy a whole kit. $$$
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150 Gal system 3'x3' 400W M/H, Bekett skimmer, Dart return,1/4 HP Chiller
180 Gal Drop tank, LED lights, Bubble master 250 skimmer,Hammerhead on a closed loop, Speed wave return.
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