Cloning

Hey guys. I have a problem that I didn't find the answer while looking up on the internet. Long story short: How much big my clone must be? It's stem, what length have to be to cut it? I have two wannabe clones at 4 inches (10 cm) and it is my 41 day of my mother plant

Thanks all for responding. I think this thread is the only one who no one responded to

I do a hydro system called eZclone. They just have to be about 2 ½ inches tall. There needs to be at least an inch between nodes for the stem to stick through the foam holder that inserts into the water tank. You're plants should be plenty big enough to clone.