What is wrong with my plants?

[czcz]

I like Hoovercat's suggestion though anubias is not not dependent on roots to get nutrients. With your light dosing more [acronym:c6c2feed54="Kelvin or Potassium, depending on context"]K[/acronym:c6c2feed54], [acronym:c6c2feed54="Carbon dioxide"]CO2[/acronym:c6c2feed54], and MgSO4 dosing will not break anything, assuming large [acronym:c6c2feed54="Partial water change"]PWC[/acronym:c6c2feed54] so nothing runs away. You can do this one step at a time for a couple weeks if you prefer a more scientific method. I agree with Simpte: remove those leaves so the plant puts its energy toward new growth instead of repairing sick leaves.

[acronym:c6c2feed54="Hope this helps (or) Happy to help"]HTH[/acronym:c6c2feed54]

[gruzek]

OK, guys. Thanks for your help. I`ll let you know what is going on. I`m not gonna do much but just wait - we`ll see what happens.