Sandie, they are beautiful, all of them. Just keep doing what you did with the original semps. Only water early in the morning when it is the coolest. This should give them enough time to dry off before things heat up. The combination of high temps and moisture is what gets them. Also putting a nice layer of chicken grit under the rosettes so they don sit on the soil really helps to keep them healthy.
They don't need as much water as some of your other plants that I see in the last photo. That could be a conflict of water needs with some of the combinations I see.
