bettas like humans needs night and day hours. Well all living creatures do they get energy from light. I would suggest turn the tank light on when you wake up and turn it off when the sun starts going down. When you say they get "super active" do you mean when you first turn the tank light on? That is normal think of it like when you are sleeping and someone turns the overhead light on you startling you and waking you up.
Red, Casanova, Habanero, Falkor, Eragon
Thelma, Babycakes, Black Sheep, Mystique, Dew