Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.
First a big !!! I had an octopus, think it was Ink who had the same type injuries. They did eventually heal but never regained the same color changing pigment abilities in those areas. Make sure your water parameters are ok especially the ammonia. Sometimes octopuses skin can be extremely sensative to an ammonia spike! Good luck!