33% germination rate...Breeder issue?

Hi there! It can be genetics and they just were very easily shocked/killed but to me this feels more like something you did if all of them sprouted but they died afterwards. I've seen seeds that growed only cotyledons and no root at all etc. so there might be still genetics related. When you are transferring those seeds to the new system you want to keep the environment as stable as possible 'cos temp/humidity changes and pH/EC changes in water might shock or even kill the fragile seedling. I always like to let the seeds be in the paper towel until I see the cotyledons forming and transfer then, by doing this I think they are more developed and therefore maybe can handle more handling and changes