a nft system

[dignon]

i am a beginner that is using a nft system attempting to grow potato plant.

i built this system myself using a roof pan that is about 2 inches deep 1 foot wide and 6 ft long, filled with perlite. will this be sufficient?

my second question is how thick should my nutrient level be? would 1/25th of an inch be enough? what r your suggestions on this type of plant to make it succeed

please send answer to dignon28@aol.com

any help would be wonderful thank you very much and please excuse any misspellings or punctuation mistakes.