I would prefer a dry soil str8 outta the bag over a moist dense mix. Seems safer to store and I have only ever had Fungus Gnats from weird off brands and Miracle Grow. Happy Frog and Ocean Forrest are 19 Bucks for a 2 cubic ft bag where I live. Love the big chunky Perlite Fox Farm sells by itself as well. And I water till it comes out the bottom and fills the saucer a bit.