Old thread but figured I'd chime in since I just lost my first skunk cleaner apparently due to a failed molt:
-- Had the shrimp for 2 years and always had clean molts every month or two
-- Recently, shrimp was fine and aggressively took some clam out of my hand as I was distracting him to spot feed some corals (normal)
-- 3 hours later, I saw the shrimp laying on the ground, struggling with a molt
-- Next day, my urchin was carrying the molt but it looked meatier than normal and the shrimp just looked really bad (deformed antennae and claws)
-- The shrimp continued to move around the tank for about 5 days but was very lethargic and just never looked good
-- Haven't seen the shrimp in about 3 days so assume he died and got consumed by CUC at this point
*on the iodine note, my iodine was always low per ICP (0.012 mg/L) for the first 1+ year I had the shrimp ... I did start dosing Seachem Reef Iodide for a while to see if it would help zoas but stopped when next ICP showed high Iodine (at 0.526 mg/L) so I don't think low iodine was an issue for my shrimp,,, unless high iodine was the problem, but don't think so