We've been using biobizz for years, and very happy with it.
We always start our seeds into lightmix soil from biobizz - and we never encounter problems with it being too hot for them,
And for our grows we keep it simple with just the grow and bloom liquid nutrients.
There's topmax for a flowering booster, however when you're working with rooms of plants, it's expensive. So we use meridian molasses instead, for the same price you get much more for your money.
Outdoors this summer, again due to volume of plants we used only worm humus from biobizz, and bat guano.
Our plants also responded well to 'black pearl' from grotek. A sprinkle under the rootball on transplant seemed to benefit, again it's a product that will last a long long time if you're working on a small scale.
cheers, mitch
Oh p.s if those products aren't available in the states, I'm sure there would be something comparable.
That's all the products we use for our autos
