You mean the water farm?
What I would do... after many trials and stunting plants, etc... is start with your water and something like Clonex. Put your Clonex to around .3 EC (300ppm at .5 conversion). Once it gets a couple leaf sets, bring that up to say .6-.8 EC. Keep that going until you see flowers. Then, add some regular nutrients. Keep it at around 1-1.2 EC or even a little less. I use Jack's Professional line. The Clonex solution is great for getting a great root system started. Just make sure to measure the EC of the solution. I recently started a round of seeds and mis-measured and the EC was around 2... almost 1000ppm of clonex. That stunted the plants big time and they're really teeny, just starting to flower. I'll hopefully just make some seeds from them and start again. But, it did set my grow back a bit...