Disclosure: This post contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. You walk over to your hydroponic garden expecting crisp, healthy lettuce — and the leaf edges are brown, dry, and crispy while the rest of the plant looks fine. That’s tip burn, and…

Disclosure: This post contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend gear we’d set up on our own counter. The short version Three names dominate the countertop smart-garden world, and at a glance they look interchangeable. They are not. After digging…