I have a red betta in a 2.5 gallon tank with a 15 watt light. I've only been using the light mid-afternoon and then shutting it off before going to bed. When I check on them in the morning, my red one looks like his color is washed out. Thinking, oh it's because the light isn't on, I turn it on and he still looks washed out! A couple minutes later, his color returns back into a vibrant red/pink. What is happening here? Would it be better if I just left the light on 24/7? Thanks for your input.
(ps: I have other bettas that don't have their color fade out when their lights aren't on, but then again, none of the others are red, they're blues and a pastel)
(ps: I have other bettas that don't have their color fade out when their lights aren't on, but then again, none of the others are red, they're blues and a pastel)