dulling of color

[DVirginiana]

My guess is he isn't eating because it's getting too cool. Mine starts to lose interest in food and try and aestivate if it gets below 75 much at all. If it's going down to 70 at night, that's probably why he's not eating.
What sort of heating equipment are you using? Even if you don't turn the heat up during the day (which you probably could... adults can handle daytime temps in the 80-85 range) you could at least turn it up at night.

[Pezsas]

I will get some Pedialyte and do that. He is near a window, so he gets a seasonal day/night cycle with some light reflecting into his off my other critters lights. Should I get a light just for him?

I have the room set up warm and positioned to keep an ambient temp high, with the tank design it keeps the temps where they are at. I just picked up a heat cabe to raise the temp, I will put it in tomorrow.

[DVirginiana]

Pacs are tropical; their day/night cycle doesn't change as much as ours does seasonally since they are much closer to the equator. If you can't keep the overhead room light on for about 12 hours out of the day then I'd recommend getting a light just for him; no brighter than 40 watts though. It can hurt their eyes. The cycle being off may be part of what's bothering him.
Also, if the window isn't insulated you might want to move him away from it. Being next to the window like that might make him warmer during the day when sun is shining in, but it'll leach heat out of his tank at night.

[Pezsas]

Hey everyone, Just wanted to update everyone. I got the heat correct finally with a gradient through the cage, it ranges from 80- 85 during the day, and 77-82 during night. He has started eating again which is awesome, full grow dubius. and I have even heard him call every once in a while at night. He really is doing great. however the color on his face still has not come back.

[deeishealthy]

Glad to hear you got everything regulated! It's challenging for sure. I wonder if the colour will come back.