Nice! Good luck to you on your incubation! If you're interested, you may want to join July's hatch-a-long since your duckies should hatch in July. It's a great place to ask questions along the way, if you have any.
My first incubation was duck eggs and the lady that sold them to me gave me these basic instructions. They all hatched and it's done well for me, so I share them in case they can be helpful to others. Good luck!
Edit to add: The still air incubators may need a slightly different temperature than the incubators with a fan, so I'd check into that as well as using a calibrated thermometer to double check the temp readings in your incubator.
Hatching 28-day duck eggs
Day 1-3: humidity at 43-47% ideally, but not more than 50%.
Temperature: 99.3-99.6F
Day 2: start misting once daily with 100F distilled water
Day 4: Humidity 45-55%
Day 5 and 10: Candle
Day 15-25: leave lid open or off the incubator for 15 minutes a day, mist the eggs then put the lid back on. (Mimics broody mom going for a swim and coming back wet)
Day 25: Candle
Day 26: lockdown. Decrease temps to 98.6, humidity 67-74% and the waiting begins.
Day 28: Hatch day!
