What causes plants to suddenly uproot themselves? Nodes of my e.belem occasionally make a break for it and I've had couple new stems of b.salzmannii that prefer taking the scenic route around the tank. The belem has roots but just ejects itself while those salzmannii haven't developed any appreciable roots yet.
Today, though, was the worst yet. When the lights came on, all these were floating around:
m.matto (red stem) x1
hottonia palustris x2
b.salzmannii x 2
The only inhabitants are rasboras, a dwarf gourami, and amanos. Substrate is 1-2mm Peace River inert gravel.
I did add root tabs a few days ago - could that be related?