Hello mikkel753951,
Unfortunately I don't personal have any recipes for tomatoes, and I've not gotten around to even making my own
nutrients yet. But I have some links that will point you in the right direction including a tomato
nutrient solution formula. The blog is written by a chemist and hydroponic grower. And there is even a free nutrient calculator available to download. The last link (the tomato recipe) is from The University of Arizona.
Science In Hydroponics (homepage)
Hydroponic Tomato Formulations – Nutrients for Every Growth Stage | Science in Hydroponics
The First Free Hydroponic Nutrient calculator
HydroBuddy’s Online Hydroponic Formulation Database | Science in Hydroponics
Scroll down the page a little in this link and there is a Nutrient Solution Recipe for tomato's.
Growing Tomato's Hydroponically