Can you help diagnose my chick poop please

[Lils Roost]

I have 3 chicks that I've had for a week and who are now 7 weeks old; 2 Buff Orpington's and a Rhode Island Red. I also have 3 adult hens who are in a separate coop / run from the chicks. Since the chicks have been here, the 2 Buffs appear to be molting; they are all feathered with the exception of the bottom of their necks which looks a bit straggly. I've checked a few times and don't see any mites or lice.

Their coop is elevated and the run has mostly sand. There's a small amount of grass that seems to have tough roots. They were in the run with the sand all day yesterday along with their chicken starter and fresh water. They seem to be eating quite a lot of the sand but I wasn't concerned. Their food is crumble and they are eating it, but there is also a lot being left on the ground. This morning I found this (picture). There was also another poop with a bit of pink in it and in it there was a piece of grass root that was pretty firm but not hard; still pliable. Can you offer any advice? Thank you in advance!

 

[Lils Roost]

The "root" may have been a tapeworm. Is Valbazen safe for 7 wk old chicks? how much?

 

[HollowOfWisps]

That is quite a bit of intestinal shedding not worms. You need to treat for coccidiosis. You can use Corrid, but with that much shedding I would order Baycox (Toltrazuril).

 

[Lils Roost]

Thank you so much! I'll have to see where I can get that. The coop with the chicks is adjacent to the coop with my older hens; about 6 inches between them. Should I relocate the chick coop?

 

[Lils Roost]

Thank you @HollowOfWisps. You were absolutely correct. I started them on Covid right away because the med you suggested was going to take over a week to get to me. The following day, the stool was a lot better and then the following day, there was a lot more which led me to believe the other 2 chicks picked it up. I'm now on day 3 of treatment and it looks like all three of them have turned around. And to be on the safe side, I'm treating my 1 yr olds whose run is adjacent to the littles. I really appreciate your help and willingness to chime in.