In 2009, entrepreneurs Nikhil Arora and Alejandro Velez started Back to the Roots to create urban mushroom farming kits. Their kits help customers grow mushrooms in recycled coffee grounds indoors. Since then, the business has evolved into a line of of fun, innovative eco-friendly products also including an aqua farm (plants clean the water, fish feed the plants) and stoneground whole wheat cereal.

For Arora and Velez, restoring transparency to the food chain has become both mission and mantra. In 2012, Arora and Velez were honored on Inc.'s 30 Under 30 list of the most inspiring, young entrepreneurs.

On April 22, Inc. will welcome Arora and Velez, who are now 27 and 28, respectively, back to join Inc. senior editor Maria Aspan for a live video interview about, among other things, their new products, their startup challenges and successes--including getting onto the shelves at Whole Foods--and what it's like to be an under-30 entrepreneur.

To ask questions before or during the live chat, use the hashtag #IncLiveChat on Twitter or Facebook, or write them in the comments section below.

Don't miss our full line-up of Inc. Live Chats with 30 Under 30 alumni:

April 22, 1 p.m. ET: Back to the Roots Founders Nikhil Arora and Alejandro Velez
April 23, 2 p.m. ET: Marketing Guru Shama Hyder
April 24, 12 p.m. ET: Contently Founder Joe Coleman