Hi there! I've been using an Ecoglow for the last two weeks and I'm going to give you totally different advice from the other folk that have already commented. The point of the Ecoglow is to mimic a mother hen, or in your case, duck. As long as the room your brooder is in is above 10C, that's fine. That's advice directly from the Ecoglow instruction booklet btw. The chicks go under the Ecoglow to warm up, come out and run around, eat and drink, cool down a bit, then scoot back under it to warm up again. You don't need a thermometer in your brooder when you're using one of these and the brooder REALLY doesn't need to be 90F, that's for when you're using a heat lamp and heating up the whole brooder, which is completely the opposite of how the Ecoglow works.
Call ducks are quite small, aren't they? You said you had the Ecoglow on the middle height setting, right?
Brinsea recommends the lowest setting for chicks and says that by the time they're big enough for the next setting, they probably won't need it any more. The higher settings are for bigger birds, like goslings. If you look at the photo of it on
Brinsea's website, you get an inaccurate idea of how to use it. The chicks shouldn't be able to stand up underneath it without touching the hot plate. They should have to hunker down to squeeze under it and they should be touching the hot plate, just like they'd be snuggled up against their mother's body under her feathers. I think you should lower yours to the lowest setting. I've still got mine there and my chicks are two weeks old now.
Good luck with your baby!
