Incorrect color?

[RogueAgent94]

Hi guys. I've been trying to get a good picture of my Yellowtail Blue Damsels for a while but the color isn't coming out right! Without a flash they look purple with a bright yellow tail. With a flash they look electric blue with drab yellow tails. In reality they are deep navy blue with a nearly florescent yellow tail. Here are a couple pictures to show you what I mean. Any advice on how to fix this? First two are without flash and last is with flash.

 

[RogueAgent94]

Anyone?

 

[Misled]

The white balance is off. I don't know what you shoot with.

 

[RogueAgent94]

I think the white balance is set to automatic. Not positive though. I never mess with it. I use a Canon EOS Rebel T3 with a EFS 18-55mm Image Stabilizer Macro 0.25m/0.8ft lens.

 

[Misled]

Shoot in RAW. Adjust the WB after with the software that came with your camera.