Sick/injured baby chicks?

I wish I could post videos here because these pictures don’t really show whats going on but anyway:

Out of a mixed group of 10 chicks, we have two that are acting sick or injured but we cant really pin point what it is.

They’re eating and drinking fine, poops have been watery but have gotten better since removing them from the group. Legs don’t appear to be injured, they stand up just fine. Walking is when they seem weak.

Main concerns are they’re acting very weak and keep gasping even though temperature and ventilation are good.

First picture shows a Mystic Onyx that seems like it doesn’t want to walk much, watery poop, stretching its wings down when it stand up (doesnt look unintentional, no issue holding them up if it wants to)

Second picture is a Midnight Majesty Maran that cant seem to do anything without holding its wings up, and has the same issues as the Onyx.

We’ve isolated, given more electrolytes, given sugar water and yoke.

Any advice?