Planted Tank Guru
Join Date: Jun 2004
Location: Baton Rouge, LA
Yep. Instantaneously exposing anacharis to a normal dose of Excel is almost guaranteed death. Start with 1/4 dose, and wait a week before each increase to 1/2, 3/4, and finally full dose. That should avoid death, but it may be many more weeks, even months, in my experience before it grows with normal vigor.
Or just write off anacharis. Plus hornwort, which has similar problems. Vals may initially melt, but usually recover with no action on your part.