Had my male McClosker Flasher wrasse just over a year, always super active and good eater. Just came back from 3 days away last night and I didn't see him. Checked the floor and sump but finally he came out from under a rock. All other fish were fine, had autofeeder on I always use with Hikari marine high protein sinking pellets. I added some Rod's food and he went back under the rock. Today he was out swimming but slow, added some TDO pellets and he ate some, then tried Rod's food and he darted really fast to get a few pieces...only to spit them out. Then after work I tried some TDO again and he didn't eat them, in fact he looked to be spitting up food that he had not just eaten. Then I just saw him rubbing against a rock and laying on the bottom. There are no spots I can see on him or lesions. Colors look fine but he's still swimming. Tank mates are thankfully not harrassing him. Tankmates are pair of Oc. clowns, tailspot blenny, and yellow watchman, all seem fine. No new fish have been added to tank in 6 months, some hermits were added about 3 months ago. Any ideas on what it could be or what to do? Water is 79 degrees, 1.025, pH 8.1, Nitrates like 1-2 ppm.