This video is about kratky hydroponics, which is a standalone non-recirculating hydroponic system.
$10 – net pots
xGarden 50 Pack Lightweight Economy Net Pot Cups for Hydroponics and Aquaponics – 2″ Diameter Thin Lip Design with Slotted Mesh Sides https://www.amazon.com/dp/B07W9H8ZRH/ref=cm_sw_r_cp_api_i_7e6.Eb90W3S1M
$27 – nutrients
Botanicare BCPBPGQT Pure Blend Pro Grow Terpene Enhancing Base Nutrient Vegetative Formula, 1-Quart https://www.amazon.com/dp/B0002E5O6O/ref=cm_sw_r_cp_api_i_Dh6.EbFTCJ248