Stop Paying $3 a Pod: The Real Guide to Cheap Hydroponic Sponges That Work in AeroGarden, iDOO, and LetPot
Branded AeroGarden pods cost $1.55 - $3.65 each. Third-party peat sponges run $0.10. Full cost breakdown, cross-brand compatibility (iDOO, LetPot, Ahopegarden), and what actually works.