I have a yellow watchman goby that is acting really odd; swimming at the top of the tank and hanging out in the open and didn't even swim away when I put my hand in next to him (to test his reaction) his coloring is a faded as well. This fish usually hangs out by his rock and darts into it whenever you approach the tank. He's also usually a pig. The other fish seem fine in fact I think the mandarins are close to spawning again since her belly is fat and his colors have intensified and he's keeping his dorsal fin up more. My toadstool doesn't seem to be too happy (hasn't been since the skimmer pump disconnected from the intake and shot air infused water at it)..all the polyps are retracted when usually they are fully out..the other coals seem to be fine acans are nice and puffy with the feeders out most of the time, chalices appear to be fine can only distinguish the feeders on one though, but they're coloring back up from shipping (recent purchase) and the kenya trees and colt corals & xenia are fine as are the evil apastia I've been trying to kill of yet they keep spreading grrr. Tank Specs: 46g Temp 76 KH 8.5-9 (@ 8 the color was yellow green and @ 9 was full yellow) Phosphate .25 (I changed the phosphate removing media) Nitrate 0 Ammonia 0 PH low at 8.0 (API Test Kits) I don't use RO/DI just RO water for now till I can get my own unit I'm hoping to get one for my birthday.