I called FoxFarm and got the scoop on their feeding schedule vs. bottle mixture, the difference between their Ocean Forest and Happy Frog soil, and whether to use their Hydro version of Grow Big when fertilizing using the double-cup method. ***I recommend using these products at half strength for hot pepper plants!***
FoxFarm Feeding Schedule (US, EN)
Cheapest prices I could find on Amazon:
Grow Big
Big Bloom
Tiger Bloom
3-pack (best value)