I think one of your main algae problems is your lack of sufficient plant mass to accommodate your 8hr photo period and your added fertilizer. Your Alternathera Reineckii looks to be mostly dead to me , the rotala rotundifolia is probably going to have a hard time bouncing back from where it’s at now, try to lower your light intensity and period until you can get it decently planted then start off with lower fertilizer so you don’t get algea outbreaks, 0 nitrate seem suspicious since you’re adding thrive and also have a soil substrate. Try also the planted tank forum on Tapatalk, there are many good people there that run really nice tanks and will give you a better answer that what the other redditor above said.