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I hear what your saying but think about this.......
I’ve kept BTA’s at 100-300 par
No real rule, BTA’s are very flexible.
So double could be 200-600 par.
FWIW, my current BTA gets 220-240 par.
The location I will be putting my mag will be a bit higher at 300-330 par.
I’ve been watching this thread since it started and the OP has done great!
Thank you! That is a great explanation. I have some sps doing well in 150-175 par and some zoas that are in 250 and growing like crazy. I had every intention of getting the mag into higher par, but I wanted to take my time and watch how it responded.


