I saw that you can do that. Man we are light years ahead of where the growing game was just a few years ago. I am glad I stopped giving away my cash to the water peddlers...lmao.Wait till you find out you can dump all the nutes you have in there and input the ppms you want and it will select the best to use (and how much of each) to hit that recipe you asking for as close as possible. You can basically copy any comercial recipe with cheaper incredients that way.
When I started this adventure so long ago I had to walk uphill both ways for awhile...if you get the reference. Nowadays there is soooo much good info available at your fingertips. The learning curve can be MUCH faster.
Have a sweet day all.
Peace, negative.