fertilizer mixture ?

Maxigro and maxibloom are cheap and about the most simple nutrients you can get. They work great for soil and hydroponics and are true "stand alone" nutrients. They work great alone without adding any boosters.

For the medium: 1. Roots Organics Formula 707 Soil. -20$ for a 5 gallon bag (Cheap asf) -Organic and includes a lot of essential nutrients for cannabis. -These are its ingredients: peat, coco fiber, compost, perlite, pumice, worm castings, bat guano, fish bone meal, soybean meal, feather meal, kelp meal and much more. For nutrients: 1. During vegitation it may be benificial to use grow boosts such as: -Roots Organics Buddha Grow (12.50$) 2. During veg+flowering you can prevent rot and calcium/magnesium deficiencies using: -Cal-Mag Plus by Botanicare (50$) 3. You can also choose to add things into the soil to increase water retentianed, breathability, and root stimulation but personally I’d recommend adding a bit of: -Vermiculite (10$) Side note: Honestly your setup looks really good and you could seriously get away with just using the 707 formula soil as it comes with enough nutrients to sustain a cannabis plant no problem. The nutrients are to help maintain what’s known as a ‘live soil’ which, according to 710Labs, can stimulate the roots ability to take in nutrients, and is def something to look into. If you are to spare no expense with your medium’s nutrients you will maximize your yields. Anyways best of luck, my friend. And happy growing!