Can create subscription_choice entry in rails console with subscription.subscription_choice.create(eliquid_id: eliquid.id), where subscription = Subscription.find(x) and eliquid = Eliquid.find(x). Form doesn't work, been using this SO answer http://stackoverflow.com/questions/13506735/rails-has-many-through-nested-form. Fear there will be a problem submitting multiple eliquids in one form, once I get it working. Also have no seeds, should probably add some or use Jaks