Hy-Pro

Hy-Pro covers a whole schedule within one brand here: base feeds as Terra, Coco A and B and Hydro A and B, alongside Cal-Mag, Generator, Spraymix as a concentrate and ready to use, and a nitric acid pH down. There are also made-up packages, two starter packs and two smart box discovery packs.

Two ranges sold per substrate, and the difference between them

Two things here are sold per substrate, and they do not behave alike. The Rootstimulator comes as Terra, Coco and Hydro, and Hy-Pro publish no difference in composition between the three: what does differ per substrate is the schedule around it and the base feed it runs alongside. The Epic line comes as Epic Boost Hydro, Epic Bloom Terra and Epic Blast Coco, and there Hy-Pro do give each bottle its own list of components. So do not assume what holds for one holds for the other.

Where it sits, and how to read the dosing

All of it is under Nutrients. This brand comes with a dosing warning: for several products Hy-Pro publish a grow chart rather than a fixed figure, and a single number taken out of such a chart is one week's value rather than the whole cycle's. Read the range and its direction on the product page, and keep your base feed's schedule beside it. With the made-up packages the usual advice applies too: check the contents list, because the terra and hydro versions do not hold the same items.