My female cockatoides is darker in color and hiding between branches, is this normal?

[Xjcohenx]

Hi,

I wanted to make sure my female triple red cockatoides is doing well. She is usually swimming around my planted tank but recently her colors have darkened, dorsal fins are folded in, and hiding between branches. Is this normal behavior, is something wrong? Just want to make sure shes ok. I've had her for a few weeks and this is the first time ive observed this behavior.

 

[Xjcohenx]

Here's a picture

 

[dw1305]

Hi all,
She doesn't look great I'm afraid. Very dark isn't normally a good sign. Did she show any signs of thinness before this?

What does the rest of the tank look like? The little bit I can see looks pretty suitable for Apistogramma.

I can see your Nerite (and Nerite eggs) is your water very hard?

cheers Darrel