@Nautilus143 Lights still looks pretty strong to me... again, it's kind of hard to judge from a photo. I would dial it down to err on the safe side (put some black electrical tape over say 1/3rd of the LEDs).Apologies for the delayed reply. Here is a pic with only rear bulb on:
Now, with respect to fertilizer, I do agree with @Sergey that you probably do not need that level (EI) of fertilizer for your tank. That said, there is no harm done finding a middle ground here. Fertilizer do not cause algae. I have been pummeling my two low-tech tanks with fertilizer (NPK in particular) for a long time now ... no drawbacks what so ever. Could I get the same results with half the fertilizer ? ... probably. 1/4th ? perhaps... The thing is, I do not know (the experts wouldn't know either unless they would really get in on the excruciating details of the individual plant species, plant mass etc.)... and that's kind of the beauty of the Estimative Index I'd say - You just want to make sure you got enough of everything and combine that with proper maintenance, The worst thing that can happen is that it will burn a hole in your wallet - especially if you buy the fertilizers bottles that are almost 95% water. And right now your doing nothing except for traces with Tropica Premium - plus whatever the fish, food and plant waste provides in terms of NPK... So, what I would do, as both @Sergey and myself, have recommended is to do Tropica Specialized for starters - you can always change it up as things gets better (you probably want to because that stuff is expensive in the long haul). I do, with all due respect, disagree with @Sergey about the amount - the recommended dosing of Tropica is not nearly enough IMO, so double that - that's what I used to do not too long ago when I was doing Specialized + Seachem NPK, before switching over to DIY fertilizers.
I also think you should add more plants, and a cleanup crew - never a bad thing to have a around if your existing livestock is compatible (which it is...). I am huge fan of frogbit myself, both my densely planted tanks have the surface covered around 60-70% with frogbit - they are amazing! Since they draw co2 from the air you can use them to "tell" if you have enough fertilizer in your tank - mine are growing rampant and I basically have to weed out every two weeks.... (it hurts to throw them away... I wish I knew someone nearby I could give them to) but what I have recently realized is that you dont have to worry about too much coverage in terms of light penetration - as long as you do not obstruct flow and circulation of course, which is the life blood of the planted tank! it's a fun balancing act really. All my regular plants are thriving just as good as ever - it's just perhaps somewhat slower growth - which sort of makes pruning of the regular plants easier.
As for water changes... During the time you are combatting the algae problem you should definitely up you WC frequency - 50% twice a week is a good recommendation. With that you get rid of algae spores and that extra waste that under normal circumstances wouldn't be a problem. When you get things under control you can dial back the WC to say 40-50% weekly. ... but keep that light intensity low.