Hi, Im actuall replying to the origional post . I have had this happen in my tank htis week. Green hygro tops after a water change 50%. Look the same as your leaves curling downward. This phenomanon shows up in the morning and is gone by the time i get home from work. Happens only after a water change now that u mention it.
What type of tapwater conditioning additives are good to use with our planted tanks?