Don't think it's necessary with your apex. Borrow the clubs par meter after becoming a member and you will get all your par readings without spending money. I don't test nitrates, no reason to. Everything else it does your Apex does.
That LED setup is INSANE. Clean look, maybe a tad high on wattage for my tastes with LED, but when you upgrade to a 300 you won't have to buy anything.
yah that was the initial plan was for when I upgrade at most I will have to build 1 more of those lights because of the length of a 300. Also the plan with the mp-40s that are on their way.
Bonsai
ORA Red Planet
ORA Oregon Tort
ORA Calli Tort
ORA Green Birds Nest
ORA Valida
Blue/Turquoise Hammer
Sunrise Millie
Green Millie
Blue tenuis
Rasta Zoos
Mystery Zoos odd coloration
Jedi Mind Trick
6 in Tahitian Clam (Pearlescent green, purple, and electric blue) Puts the saying "Happy as a clam" into perspective
Additions coming to the tank when the BRS group buy comes through:
Bubble Magus Dosing pump
Mag rack
Aquabreed 1000 phyto reactor
Auto top off system
Hard plumb return
and finally investing in a RO unit so I can stop buying RO water from sprouts market