Remove all the growing media.
If its 1,2 grow, wash the jelly away and cut into 1cm clumps and plant with tweezer...
If in rock wool, cut the bottom 2/3rd off, then, leaving some rock wool for the roots to grip, cut this up, again into 1cm clumps and plant with tweezers.
It will grow fine in small clumps, you just need to prune the plant regularly to start with, to get it to look like a flat carpet.
Easy peasy.
Good luck.