dark lighting bad?

[Jenny]

I have two koi that are being kept inside as they were just shipped from a warmer place, and outside it's still pretty cold, so I'm acclimating them inside where it's toasty with my heater! However, they're in the garage where the lighting isn't terrific. Will the bad lighting be a problem?

 

[Meyer Jordan]

Being this is a temporary home for the fish, there shouldn't be any problems as long as there is some light.