Originally Posted by TwinDad
I suspect the pleco might be searching the plants for food after dark. They might be trying to find algae on the leaves and harming the plants.
I have no experience with a YoYo. I think I have read others tell of loaches who search the ground for food also uprooting plants. But the damage you describe is either stem plants not getting enough light or a fish trying to eat it.
What light do you have over the tank?
Its twin 12" tube, the tank is hexagonal, im thinking i may just leave it as is and maybe put some more grasses in, at least until i get my new tank and then use the reccomendations made here for it