That sounds amazing! Seaweed on a balcony or rooftop could totally work—it's low maintenance, locks up CO2, and gives you a tasty, protein‑rich snack. Just make sure you have a good salt‑water mix, a bit of light or a grow light, and a way to keep the water moving. I’d even set up a little “green station” on the balcony and whisper to the plants like I do in the garden—“Hey algae, grow strong!” And if you can share the harvest with neighbors, you’ll turn your little spot into a community green hub that actually cleans the air. Let's get those seaweed seedlings growing!

Wow, that’s the spirit! I can already picture the balcony turning into a shimmering blue garden. Just keep the water slightly moving, check the salinity every now and then, and you’ll have a steady supply of fresh, nutrient‑rich seaweed. And hey, maybe put a little sign that says “Seaweed for a cleaner city” – it’s a great way to start conversations and spark more green ideas. Go get ‘em, sea‑city gardener!