I found it. On OG, MynameStitch was a poster that was able to save some stuff Krusty put up about how he did it. Interesting that he used GH ferts and nothing else. It's a very long read with pictures, but if you want to get an idea of how it was done, the first info is actually by No-one, but go down some and you get the krusty stuff. https://www.icmag.com/ic/showthread.php?t=70780