I have an albino red oscar and it has dug out a hole and is laying on its side in it a lot. It is not being aggressive toward other fish going near the spot.
Thanks, that helps a lot.
Does it act normal?swimming fine? eating ok? I get the diggina hole thing because its normal but I dont think it should be laying on its side a lot. It might be stress, your water might be bad, or its just moody. Oscars get pretty moody sometimes and lay on there side.