Maybe they are waterholics. LOL
3 WeeksHow old are the chicks?
Have you just move them to new quarters?
How often are they sneezing? Occasionally or all the time?
Are any butts pasted up and soiled?
What are you feeding?
Heat source? How warm?
Type of bedding?
Number of chicks and size of brooder?
Please answer all these questions. This information is critical to helping you.
Their feed is really crushedGood job! But more details would be helpful.
How warm is the brooder under the heat source? How warm is the average brooder temp? What is the temp at the coolest end? What is the temp in the room where they chicks are, ambient temp?
What type of wood shavings? Pine? Cedar? Hemp? Aspen?
What type of feed? Is it finely milled? Dusty? What treats are you feeding? Are you supplying chick grit?
Generally, right after a change in their living quarters, chicks can experience stress. It can cause watery stools. If they are too warm, they drink a lot of water, causing watery stools. Dusty feed causes sneezing occasionally.
Chicks at three weeks no longer require heat during the day as long as the ambient temp is around 65 to 70. Continuing to heat them during the day slows down their ability to adjust to cooler temps, prolonging dependence on heat to their detriment.