If you use a dosing pump head for ATO you just set it to pump a half gallon a day, for example. There wouldnt be a float shut off set up, you just estimate your evaporation and replace it. But on a big tank I wouldnt use it for that, it is easy enough to just dump in a gallon of RO water every few days. Take a look at Marine Depot or Bulk Reef Supply, any of the pumps they have are fine.Thanks for your input on the dosing pumps...
Dosing pump - This is the first time I heard about Bubble Magus. These are not closed loop correct? ... ie for ATO, its not going to stop once the tank is filled I assume.
On NILOCG and GLA - I did come across both and I was not sure when I need to start it... so didn't buy them yet!... so you recommend these as a beginner before moving to the DIY method?
T5HO - hmmmm... thought everyone is adopting to LED and technology is also getting better...
The PPS pro chemical package at Niloc or GLA are do-it-yourself ferts and a step above using the mystery pre mix liquids. Youll need a scale to weigh out the powders. A step above that would be mixing your own micro ferts, but for now just use the CSM+B that comes with the package.
On your light fixture, a four foot hydropronic fixture with four T5ho bulbs doesnt cost more than what you would pay for two Aquaskys.
If you want the color shown in my pic with stem plants then you need lights with a lot of red and blue spectrum. As Dennis says on his site, very few LED fixtures have enough red and blue. You also need power, and based on what Jeff Krol said about you light choice, you likely dont have enough. If your tank is going to be more hardscape and/or mostly green plants like swords, crypts, vals, ect, then you r light will be fine.