Hello! I am going away for 6 days. I have someone coming in every other day to check on my cat & fish. I will be leaving my danios with a feeding block of food, and my otos will be fed algae wafers every other day. But I had a questions about my plants. Should I leave the light off for the 6 days? Leave it on? The fish will get enough natural light from my windows. Will it hurt the plants to have the light off for 6 days? Please advise!