When starting seeds in hydroponics, there are several types of growing media that are commonly used. These media provide support to the seeds and young plants, retain moisture, and allow for proper root development. Here are some popular options for starting seeds in hydroponics: Rock wool cubes: Rock wool cubes, which we discussed earlier, are widely used for seed starting in hydroponics. They provide excellent water retention, aeration, and stability for seeds and young seedlings. Coco coir pellets: Coco coir is derived from coconut husks and is available in pellet form. These pellets expand when soaked in water, creating a loose and fibrous medium. Coco coir provides good moisture…