Upgrading tanks

[Sumfingwong]

Ok, so I have run into a bunch of problems with my basement development, so it looks like I am about a month away from the move.

My LR from my 65g is in rough shape, my protein skimmer slowly died on me and my puffers eventually ate all the snails and hermit crab (theres 1 left) They left them alone for months.

My buddy is shutting down his tank and giving me most of his LR. Should I cook/cure them, his tank is running but not in the best shape.

My ultimate goal is to start my 155 without any problems