It isn't hacked water. I think it was removed. I'm not sure. I did manually place them. I think I'm just gonna wait it out. Kelp is very new and it will probably get fixed
Thank you very much for the reply! This part of the commands seems to not work. @p[nbt={Inventory:{id:"minecraft:totem_of_undying",Count:1b}}] I did replace Turtle shell piece with totem of undying.