Yeah, I think they are nice looking too!! Everything I have read said they do better in pairs or schools, So I would get a replacement if I were in your shoes.
Sorry for the loss, you've had these guys a couple of years too...
Jim
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90 Gallon glass, 135#'s of rock and 2" sand. 2-250w 20k XM metal halides. 2-95 watt actinic VHO, 4 powerheads, Coralife skimmer. Maroon Gold Striped Clown, Blue Chromis, Kole Tang, Pygmy Angel, Serpent Star, Brittle Star,Gorgonians, Mushrooms, Yellow Polyps, Turbo Snails & Blue Legged Hermits. 20 gal sump with Caulerpa, Mag 7 return pump. | 
engineer goby injury ANY ideas appreciated 
i came home from work and my engineer goby was laying across the top of the rock it looks like its got a bad injury about 4-5 inches up from the end of the tale and had a pretty good slime coating im figureing from stress. there is nothing in the tank the could have hurt him as far as critter wise and am guessing that maby a rock shifted and it got pinned under it. but i also dont seen any rocks that may have moved unless it was one underneath. any suggestions for this type of injury? he looks like the only fish hurt and my other engineer goby keeps comming otu and laying his head on the hurt one. i tried placing food in front of its mouth hopeing it would eat. shuld i hold out and keep trying or try sumting else guys? 
75 gall, 80 lbs sand, 110 lb lr, 10k pcs, atinics, emperor 400, prizm skimmer, hagen and maxi jet powerheads 
i was worried about my other one since theyve been paird up for so long but the other one is eating and acting normally. im considering getting another one again not sure though just thinkin about it for now thanks for the responses 
