With RO watch out for mineral and trace elements deficiencies
You may want to add Epson salts
I see you monitor ph which is great but also work with lower ppms this will help a lot. much easier to add then to subtract once lock out or toxicity kicks in
Week 1 and 2 I will usually ramp up and start lower around half strength. I really only go full strength in Veg nowadays once I’m a week or so from flipping to Flower. I do run them full strength in flower unless they really fight me on it.
Most plants seem to like it. My buddy that taught me how to grow says he never went full strength with Athena doing normal 5 gallon pots.
I’ve went full strength from the beginning right off of Athena schedule.
Typically no problems, and get a few tips showing a bit of stress, but usually that clears up and they power through.
Octopots really seem to love Athena Blended
I’m still fairly new to growing and only have a year and a half under my belt. From what I understand, it doesn’t matter or help plants to blast them with nutrients during vegetation. As long as they are happy, it’s all good. I also understand, and definitely someone correct me if I’m wrong… during flower especially mid flower where everything’s really happening, blast them with as much nutrients as they can handle and they will reward with bigger, better, buds. Of course, with and increase of nutrients comes an increase of needed light, co2, Etc
Been running Athena couple years, 3.0 cut/seedling to couple weeks before harvest. Slight lightened parts in your pix are not from too high ec. They look fine to be honest. Dont back.off the ec, dont back off the lights, you are good. This is a LITFA situation.
Edit: noticed you are using blended, ec is a little lower for the liquid line, go.with Athena recommendations on ec 100%