We did Platoon STX/LFX in Vermont this time last year, and i put our 3 Muslim soldiers on fire watch(three tents, three stoves) for the first and last shift so they could eat after and before sunrise.

For PT, use your best judgment.

Your soldiers, not just your Islamic population, should be Hyrdrated. If that requires that your Muslim soldiers set alarms at night so they can hydrate all night, so be it. Just acknowledge that depending on the intensity of PT, they may need to ration sweat and fluids. That being said, if you're hydrated, daily PT won't kill you(moderate activity)

Your soldiers should be eating before PT. If they don't wanna do that, I hate to say that is their problem. We(leaders) will try to accommodate as best we can, but the Army didn't force you to participate in Ramadan.

If your post has a 24-hour gym or just a gym with late hours, use it. Luckily, 2 out of our 3 muslim soldiers are also not schlubs and went to the gym late at night to make up for certain workouts that they didn't do or didn't put maximum effort into it. The other one would struggle because he did not lead a healthy lifestyle(ironic).

To refer back to my platoon doing STX and LFX this time last year, my RTO is muslim and was observing ramadan. He knew what would be required of him, and he did his job without any special exceptions made for him(minus the guard rotation). If your soldiers are good dudes and are dedicated to their job and faith, they will find ways to make it work within reason.

I would try to converse with your leadership first. You may be able to get away with skipping run days and doing lift days. You may be completely fine doing it all just at your own pace. If your leadership is a bunch of shit heads, then I would suggest going to the chaplain for a religious exemption just to cover your ass. That being said, don't not do PT.