Ok... I had gotten hornwort for my
betta tank like a month ago. Everything was fine, in fact, it was getting pretty invasive. I had to tie it up and re arrange it several times a week to have open room so Balthier could swim.
A couple of weeks ago it started to become yellow and sort of rotten. Then, it started shedding the little needles, (which are a major pain to clean) and it is now about to die.... What happened

?
Are those metal weights bad for the plant? I never had a problem with them before...
My java fern is doing great by the way....
