Yellow watchman goby changing color?

[rkm]

I have noticed 1 of my 2 yellow watchman gobies is changing color. Both of them use the same pistol shrimp. They both are pigs and still are. The bigger one however started to loose his/her color. It went from a vibrent yellow to a grayish color. It also seems to be gitting virtical stripes. 3 of them. Is my fish posesed?:notsure: All signs are great. Swims great, eats like a pig. Nothing is picking on it Just doesn't add up. I would think it would be stressed or something. But I see no signs. Any ideas?
Is this any kind of Male Female thing going on like clownfish. They both share the same pistol shrimp. It is odd. I have 1 lonely pistol shrimp because the other goby is paired up with the other one.

 

[rkm]

Here are some shots.

 

[rkm]

here is one of their 3 homes

 

[rkm]

Here is a side shot of the one changing colors...

 

[beth]

Ryan, that first pic is a real Valentine's Day pic!
They look like a pair and as such they will have varying colors. These gobies, as well, come in different colors, some even drab or gray, as you have there.
They seem to compliment each other very well.

 

[rkm]

Thanks Beth, I just wanted to make sure everything was good. It was just as bright yellow as the other.
I couldn't of asked for a better opertunity to take a picture of that. They are very skitish. I took the pic for you guys to see. I wish it turned out a little better. I kind of wish one would go with the other out cast pistol shrimp. I am not sure on what species it is, but It is the most attractive shrimp I have ever seen. It is purple, orange and red. Very pretty. Very indepentant, and will not come out in the open. It stays in the back hidden all the time. That is why I bought the second Goby. I thought it would help assure the shrimp that everything was ok. As they do in nature. That way it would come out more so I can view it. The other shrimp is out all the time. It isn't as colorful. Red and white. But I like to see it at work. Always moving about.