Hello, Rosanervig is the only plant dying in my tank, the other plants are thriving and healthy. I was told the issue is Potassium deficiency so I bought Potassium only fertilizer but no difference at all. My impression was that my Amano shrimps are eating it (saw them many times nibbling) but I was told that they wouldn't go for it if the plant wasn't dying already. Tank is around 8 months old, this plant was healthy for quite some time but it started to slowly decay and now it looks totally miserable. Tbh I can't remember if this started with Amano shrimps' arrival. It grows in multiple places in the tank and all of them look this bad. 70l tank, co2 24/7 with autocontroller, temperature 24C, superfish 28W light 5.5 hours a day. Tropica soil and I was using flourish fert. Anyone any ideas whether this plant can actually be saved and what is the problem? Thank you.