yes you can use great white it is pretty good, i use Xtreme Gardening Mykos Pure Mycorrhizal - Mycos Extreme, it is made just for cannabis, google and find out, since i have been using it my plants have never been happier. great white though is great as well both top choices, if you keep those roots happy and you keep the top happy you will have an amazing harvest of some of the biggest juiciest buds,
after all that is what we all want, big juicy sticky buds
hope this helps your choice