If you’ve spent any time watching aquascaping videos, you’ve seen those perfect carpets. Bright green.Dense.Pearling.Flawless. Plants like Micranthemum tweediei (Monte Carlo) and Hemianthus callitrichoides (HC Cuba) are everywhere. And yes — they can look incredible. But after growing, trimming, replanting, selling, and occasionally fighting with both of them for years, I can tell you this: There...