Opaline Gourami Appears Darker..

[PaulEbs]

I have just noticed that our 8 yr old Opaline Gourami is a really dark shade of blue, when normally he is light blue and white.

He also looks a little swollen all round, what could this be?

I have recently added a DIY Co2 kit to the tank, and the water stats are fine.

What could be wrong?

 

[PaulEbs]

Okay, don't worry, it's all good. Just using a different light and it made him look different

Glad know-one made the effort to reply