I ended up this morning coming home with a new plantK-L-N Concentrate and split home, I read many place on the web that I should use this when moving plants over to Hydoton. So then I got ready and moved this morning's find and my H. . KLN has trace amounts of NPK and Vitamin B1 according to the label, but what the heck. Bottle said 1 tablespoon per gallon in the Hydroton soaking solution, and then 1 tsp per gallon in a solution for soaking the roots.
Man, these were tough to get potting soil out of their roots. It was soak (in a non KLN solution) and pick, got the 'horrida' pretty clean, but thewas not going to let go of some, so I left it there. Then I took the soaking solution and watered all the other plants on Hydroton with it so maybe they get over the shock, my first trial was an interesting bunch and I still wonder what they are thinking on the new substrate: and