Currently i have a 6inch by 8 inch by 8 inch tank.

im using a grid of glosso as the wall. So currently the plants are growing upwards as expected. My question is, when the glosso grows longer, do i need to buy another grid of wire mesh for it to trail on? if not, would the glosso just grow till its very long like so stem plants?

next, i have a riccia foreground, to harvest it, do i just need to take all the floating parts as well as the parts which i have trimmed?