Germinated 2 Malawi x Nl, one germinated much faster and when planting the shell of one came off. The other sprouted after 2 days with shell still covering one cotyledon, stunted growth but alive. 😥 germinated a Misty gorilla auto that was left over i case the one girl didn’t make it..
For your string, you can use cable ties to provide a loop around the stem then tie the string to the cable tie rather than the stem. I use hemp twine instead of string because it's not going to damage the stems and if any fibres get stuck stuck to the plant and end up getting smoked, it's only hemp instead of nylon or other man-made material! I also use bonsai wire instead of garden ties. No reason for this other than it's what I had originally so I stuck with it!
Hope this helps, good luck with your grow - their leaves are looking lovely and lush!