I was going to call this one how to grow hydroponic potatoes but I think the process still needs a little work. The pattern of growth was pretty impressive though!

Grow details
Red Norland Potatoes were grown from Home Depot seed potatoes in a Kratky Method Hydroponics setup.
27 Gallon tote from Costco
1/2 inch PVC frame to support Agribon summer fabric
3 inch net cups
I made homemade rock wool croutons by cutting up 1.5 inch Grodan rock wool starter plugs
Plants grew in about 5 hours direct sunlight with afternoon shade February 4th - April 9th
Southern California USDA hardiness zone 10a
Temperatures were mild 60s to high 70s during day, mid 40s or higher at night

Nutrient Recipe - for each gallon water
2g MasterBlend Tomato 4-18-38
2g Calcium Nitrate 15.5-0-0
1g Epsom Salt (Magnesium Sulfate)

Tubers couldn't form properly because they were crammed up in the net cup. Tubers did form on some stems that escaped the cup but those were undersized and suffered from blossom end rot due to weak transpiration. If the potato can be suspended deeper in the container without a restrictive net cup, I think they could grow quite well.

Music is excerpts of Stravinsky's Rite of Spring (yes, some of it is... performed by me)

Artwork is The Potato Harvest by Jean-François Millet, 1855 (Walters Art Museum) and The Potato Eaters by Van Gogh, 1885 (Van Gogh Museum)