Great looking little nano! I like it! Although you gotta take that Aqueon sticker off the back, duuuude!
My GSP is fussy too...it covers half of the back glass on my 90 and it gets ****y when I need to do a waterchange or if the alkalinity drops below 7 dKH. It is my reminder coral.
What's your calcium, alkalinity, and magnesium at?