Update: Water change after 3 weeks (i.e. since the last photo).
I was planning to go down to fortnightly water changes but then got hit by some urgent work, so no water change until today
As nutrients were accumulating in the water column without water change, I stopped dosing after 2 weeks and left the tank alone in the 3rd week.
Today I finally changed the water threw away literally half the Pantanal/Meta, Rotala Blood Red and M. Roraima, and scraped away some algae off the glass. Plants seem to be generally doing ok, I have so many new Meta sideshoots it doesn't matter that some stems converted to emersed, I just threw them away....
Looking at the previous photo, the Rotala Macandras are a lot redder now (mainly because in the last photo, they were totally shaded by other overgrown stems - they need light to turn red). Actually even the H. Lancea 'Araguia' look more reddish.
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