In a new hi-tech tank where your dosing an EI type routine with good light and co2 plus it looks like your using a loaded substrate, but either way its more likely a light / organics issue than a fert one.
The main problem i find is most people worry about growing plants which of course is good, but they don't put enough attention to controlling algae. That should be the number one focus when the tank first starts since it's here that the algae starts to develop. Before you see it, the spores are everywhere and they are becoming full-blown algae by the release of ammonia from the organics. Ammonia you won't really see in a testing kit.
An very short light cycle and/or peak period of light plus many water changes and the use of organic removal media like carbon (yes carbon) a myth that one shouldn't use it, especially at startup. The plants don't do much in the first week or so, but at this time the spores are becoming algae so the water must be kept exceptionally clean.
Once you have the algae like you do its needs are similar to plants so the plants need to out compete by adding more plants, keep up with water changes, manual removal, reduce light duration and use organic removal media. Unfortunately preventive measures are far more effective before the algae develops, but in time you will beat back the algae.