How to grow hydroponic coriander at home?

Hey hydroponic newbie here! I just successfully grew my first batch of coriander, and here's what I learned the hard way:

First, coriander has a taproot so it doesn't like being transplanted much. I now start seeds directly in net pots with clay pebbles. Soak seeds for 24 hours before planting - they germinate much faster. I use the Kratky method because it's simplest - no pumps or electricity needed!

The biggest issue I had was lighting - too close and the leaves scorched, too far and plants got leggy. I found about 6-8 inches from my LED lights works perfect. Also, coriander seems to prefer slightly lower nutrient concentrations than other herbs.

Harvesting tip: Don't cut more than 1/3 of the plant at once. I harvest what I need for cooking and let the rest keep growing. The roots are shallow, so be gentle when harvesting. So much better than store-bought!

Growing coriander (cilantro) hydroponically at home is super rewarding and gives you fresh herbs year-round! I've been growing it in my kitchen for 2 years now:

Coriander can be tricky in hydroponics because it bolts easily - the key is temperature control and variety selection. Use "slow-bolt" varieties specifically bred for longer harvest periods. Start seeds in rockwool cubes, then transfer to your system once roots emerge.

I've had best results with Deep Water Culture (DWC) or NFT systems. Keep nutrient solution temperature below 70°F if possible - coriander prefers cooler roots. Use a balanced nutrient solution with EC around 1.2-1.8 and pH 5.5-6.5.

Lighting: 12-14 hours daily, but not too intense - 200-400 PPFD is plenty. Harvest outer leaves regularly to encourage new growth. The whole plant can be harvested when about 6 inches tall.

Simply Hydroponics has a great cilantro guide with specific nutrient recommendations!