Jacks hydroponic feed with calcinit is good. But I like Hydroponic Research
Veg + Bloom. All in one powder. More pricey than Jacks but way cheaper than liquids. Ive used them all. For almost 30 years
There werent many brands back in the old timey days. General..Eco..Dyna..and a couple others. And hardly any rip off additives. The only one we had was
Dynagro Protekt back in those days. No tents. No inline fans. Just loud ass squirrel cage blowers. No charcoal filters either. We used "ion fountains"..what a joke. No air cooled hoods either. And no 600 watt bulbs or digital ballasts. Lol. Just 400 and 1000 watt hps or mh lamps. And the smaller ones. No t5's. Just t12 floros. Led's were barely in calculators..much less a grow light. I can tell ya..we still grew kick ass buds.