I have read this post several times ,, I am not a Pro but I have a few thoughts & questions ,,
I will start with, your par numbers ,, it helps you have these ,, most people don't

I am a strong advocate of every reefer needing to either buy a Par Meter or have access to one ,, and use it

we spend a ton of money on corals in the hobby ,, lighting is at the top of the list of coral needs, does't really matter what the rest of the numbers are if they aren't getting the light they need or don't need ,, to not know what your lights are doing ,, I just don't see how you can not have one ,,
From here down ,, its all jmo if any of the Pro's disagree with me ,, that's fine ,, I am not a Pro and would love your insights to help me be better with Chalices.
With your Par numbers in mind ,, I wouldn't place any Chalice corals below the Par 90 number ,, you didn't say where in the tank you were placing the Chalices you were losing , if its just a Par thing going on ,, I am guessing it was below the Par 90 number ,, if you want your Chalices deeper in the tank your going to have to bump those Par numbers up ,, jmo I would try and keep your Chalice Par numbers in the 150 range ,, can the Par number be higher or lower ,, I would say yes ,, the 150 number is a good starting point number ,, jmo a 300 Par number is the starting point for a SPS number ,, I wouldn't put a Chalice into that range of a Par number without a long acclimating period ,,
Your tanks numbers look good to me ,, I would ,, if it were me ,, bump the Calcium number a bit ,, I would make your target number 425 ,, I would make your Mag target number 1400 ,,
Nitrate & Phosphate numbers ,, I feel you aren't testing these as good as you should ,, I would test your Nitrates twice a week ,, I would test Phosphates 3 times a week ,, your going to have to really be testing these numbers a lot ,, get used to it

when you put the algae reactor online ,, your going to have to monitor these numbers to get a grasp on how the algae reactor is effecting your numbers ,,
Keep us posted on how things work out
