Cherry shrimp

I recently pulled a female out of my breeding tank because she wasn't as colorful as i would have liked. Im trying to keep only the ones that are the deepest red in the tank. I put her in one of my other tanks thats pretty empty at the moment. I thought maybe she didn't make it because i didnt see her for a week, but i finally saw her today. It was like seeing a diffrent shrimp. She was so red you couldn't see the eggs unless you looked really close. Water paramaters for the two tanks are nearly identicle, temp is withing a degree or two, and they are on the same maintanance schedule. Has anyone else seen the colors change when they are seperated? The diffrence is day and night. She is a stunning deep red now instead of the light/clear colored red she was before.

The only thing diffrent is the new tank has rock substrate instead of bare bottom, and it has a small piece of driftwood.

The opposite happened to me, went into a bare-bottom for 2 weeks nad turned solid red. It's like looking at a different shrimp.
 
She was berried when i put her in the new tank. I feed a wide variety of food every other or every couple days. shrimp pellets, flake, zuccini, etc.
 
pic update

alright, just to illustrate my point, I found a before and after pic. My camera doesn't like taking pics through the glass, but you can get a good idea of the change. As you can see in the after pic, that side of the tank doesnt get the algae cleaned off the glass often, but it isn't possible for the shrimp to color up much more.

IMG_2093.JPG IMG_2086.JPG
 
sometimes there is a dominance thing also,
plus it could be a maturation thing also,

young teen girl have babies but arn't fully matured and blossomed,..
 
There is also a molting process involved during reproduction.
I beleive I read somewhere that females molt after mating, which whould result in a color loss until their exoskeloten hardened up again.. while they are berried..

if that makes any sense...
 
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