Two weeks later, the results of increasing CO2 and K: not impressive.
I can see some improvement (new growth on A reineckii Lilacina seems less contorted, and there are less holes) but it may just be wishful thinking.
The leaves on R macrandra are small and with colors ranging from pure green to orange. Some shoots of R macrandra are extremely stunted, with ridiculous leaves of a few mm long.
The leaves on D Diandra are still flimsy and growth is quite slow.
Question: could this be the result of having too little substrate? After several rescapes, the substrate is now uniform at about 4cm depth throughout the tank.
Some pics (click on them for higher res):
Ridiculously stunted R macrandra:
Healthy Tonina fluviatilis, pearling on several plants (pic is taken 2 days after water change):
Flimsy D Diandras:
Plant salad:
The stunted macrandra, different angle:
Notice the color variation between neighbor macrandras, also the snmall leaves/stunting:
This setup will be replaced soon, but I'd still like to understand why my plants stunt...