Orange ancistrus is suddenly much darker

[Leonor Filipe]

I have an orange ancistrus for a month now, and she (I think) was always bright lively orange, but today I noticed that she's much darker and duller in color. The water parameters are all good, as is the temperature and she has been growing steadily as well- the only thing I found odd about her behavior was finding her on the substrate (which she never does), she is always on the walls, rocks, plants and other decorations.
It might be nothing but I couldn't find anything in regard to this sudden color darkening and was wondering if anyone experienced the same or if she's sick. Bear with me, I'm new to all this

PS- I have an albino cory who seemed to have been sick, with a slightly swollen belly, but it has been going down and he's been very active. All other fish (emperor tetras and rasboras, and other corys) seem to be healthy with no sign of stress

 

[Sgooosh]

I have an orange ancistrus for a month now, and she (I think) was always bright lively orange, but today I noticed that she's much darker and duller in color. The water parameters are all good, as is the temperature and she has been growing steadily as well- the only thing I found odd about her behavior was finding her on the substrate (which she never does), she is always on the walls, rocks, plants and other decorations.
It might be nothing but I couldn't find anything in regard to this sudden color darkening and was wondering if anyone experienced the same or if she's sick. Bear with me, I'm new to all this

PS- I have an albino cory who seemed to have been sick, with a slightly swollen belly, but it has been going down and he's been very active. All other fish (emperor tetras and rasboras, and other corys) seem to be healthy with no sign of stress

photo
might just be maturing>