My betta had advanced body rot. He was close to death, but survived. Here is a comparison from then and now- a year later! (story in comments) : r/bettafish
Fair-Trade Wickelbody für Babys rot/weiß gestreift | grundstoff.net
LASCANA BODY - Body - rot/red - Zalando.de
Kinder Body rot
How to identify Dry Rot in buildings | Preservation Expert
Hunkemöller – Kiki – Tief ausgeschnittener Body aus Spitze in Rot mit Netzstoff-Detail | ASOS