Water Gardening: Baby Lotus Dying?, 1 by wobina

wobina wrote:
I waited a year to start these lotus from seeds and things were going great until I put them in their final outdoor growing container...

All their leaves turn purple and shrivel up, and they started developing foamy bubble spots. I feel like it’s some kind of bacteria but I can’t be sure. Seems like information is hard to find about this on Google.... Maybe I just don’t know what to search for :(

Any help would be greatly appreciated. I want my babies to live!!