Yea, I always throw wafer in the morning around 9ish. But the shrimp is tend to hatch at night so when the baby come out they will have food to be eaten. I always saw a lot of baby shrimp when I ever wake up in the morning. Like a new stock was hatch at night. My 20 gallon and 120 gallon is full of crystal red shrimp and I'll try to get rid of some because its like over populated. Just want to thin out my colony so they could produce more shrimp. I also have black crystal too but I just set that one up for 3 months so they tend to have pregnant but haven't any shrimp yet. But thanks for interesting in my shrimp. PM me if you have any questions.