Beta fish duo tank experience?

  • We are currently upgrading MFK. thanks! -neo

tlast

Feeder Fish
Apr 3, 2017
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I have recently been looking on the internet to see if anyone else has had any experience with a beta fish duo tank because i have been noticing something interesting.. I bought one along with two new betas approximately two months ago. One fish is a deep, bright, bold orange and the other was a bright pale blue and white with maybe some black spots on it.

I began to notice a couple weeks ago that the orange beta, in his back fin there were streaks of bright pale blue just like the other fish had. Then sure enough the blue fish had a few parts of orange on him. Now I notice again the other day. Im not crazy, the orange beta now has way more obvious bright pale blue on him and the blue fish is definitely turning orange lol.

Has anyone else experienced this? Is there a reason for this? I must know lol
 
I have a 29g with 5 betas 4 girls 1boy they all do good some times chase each other but that's normal but I have not seen any of them change their color like that but I have heard of this thing called the marble jean they can some times change color
 
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