Here is my space saving cloning method i use to get the most out of my space. I use clonex and rapid rooters as many others do. so first, i prepare the cutting and insert it into the cube. then i put the cube into a clear plastic cup with holes in the bottom. Like this:
Then i label a party cup and put the clear cup inside the party cup. like this:
next, i place a clear cup on top with no holes in it. it seals nicely in the party cup. like this:
you can fit them in odd spots and even stack them if you need to....
The reason i use the clear cup inside is so i can look through and see roots on the bottom...