Often times we start more seeds than we need. The extras are often thinned out. But here is a method to save and transfer them to other systems.
Supplies you might need:
AeroGarden brand sponges: https://goo.gl/D9z1aA or Biodome sponges: https://goo.gl/bvT4ZS
Extra grow baskets: https://goo.gl/4DE39Y
AeroGarden Bounty: https://goo.gl/ziC6AY
AeroGarden Sprout: https://goo.gl/eT2xoa