Reply To: drastic behavior change…

Yeah I’m a big fan of natural light and full-spectrum lighting. We humans might not care, but animals are more sensitive, and it definitely makes a huge difference. Lighting is important in my tanks and I have an auto-timer that simulates the day/night cycles. The 20-gallon has a Hagen Power-Glo Fluorescent Aquarium Lamp at 15W and 18 inches. And of course, it’s important for the plants, which are part of the tank ecosystem.