I just posted in your related thread about nitrogen, so what I will suggest here is tied to that.
First, on the Flourite substrate. This is an enriched substrate that contains a balance of all essential nutrients for plants. However, it seems to be somewhat intended to work in conjunction with a balanced liquid fertilizer, such as Flourish Comprehensive Supplement. I changed my 70g over to Flourite last March, almost a year ago now, and i found that it provided nothing for the plants if I did not use a liquid fertilizer weekly.
As I noted in my other post on the nitrogen, this is best achieved with a complete balanced fertilizer. The Easy-Life Profito seems to provide that, much the same as Flourish Comprehensive. I would not go beyond this, which in combination with the Flourite substrate should be sufficient.
On your lighting, this also i am not familiar with. Is this the unit you have? AquaRay GroBeam 1000 ND LED Tile | Green Leaf Aquariums
Perhaps one of our more technical wizards can comment on this. It seems to have all the necessaries, my only concern is brightness--wondering if it is too much rather than too little.
As I mentioned elsewhere, you shouldn't need to add nitrate. Phosphate is readily supplied via fish foods, usually more than sufficient. And iron is a trace mineral, a micro-nutrient, and in my experience there is sufficient in both Flourite and the complete liquid.
Carbon also occurs naturally in a fish tank, and in greater quantity than many realize. I am not a fan of using liquid carbon such as Flourish Excel. This is a chemical, it will kill some plants, and if overdosed it can kill fish.
A successful planted tank is an issue of balance: sufficient light to drive photosynthesis in the plants, balanced with sufficient nutrients. You might find my article at the head of the Aquarium Plants section beneficial, it is entitled "A Basic Approach to the Natural Planted Aquarium."