Hate to hear! You can get Tylan 50 at most feed stores - here I get it from Tractor Supply.
The disease could be a possibility - but also look at the surrounding and try to take out any variable that exist. For example - correct bedding (no cedar), proper heat (95%) - with the ability for the chicks to move away from heat, pure water - there could be calcium or chlorine (if you are in the city) in the water ....... once you do that - then focus on the health of the chick. I do not like the poult packs because in my opinion they do not have what I would think is the proper percent of vitamins ingredients.
One more thing - you could add some apple cider vinegar to the water to entice them to want to drink more.
Thanks,
Richard
Richard you mention the possibility of calcium in the water - what negative effect would that have on the chicks? And along those lines; when should grit and oyster shell be introduced to chicks?
Thanks,
Joe