Bubble Gum on cheapest hydro

Hello. Unfortunately, one plant had to be eliminated, because it simply stopped in development. On another bush, the roots have already begun to grow beyond the limits of the pot, and I decided to conduct an experiment on it in the form of an ultra budgetary hydroponics. At first I just put the roots in a glass of water. But a week later they had already gained weight, and I put them in a jar of 0.6 liters. I Began to give a little fertilizer, about 370ppm. Now I have raised the dose to 547ppm focusing on Nitrogen and Phosphorus. Why precisely nitrogen and phosphorus? Because the plant grows very slowly and the first signs of a deficiency of phosphorus-purple leaf cuttings have appeared. I do not place high expectations on this bush, but I wonder what will come of it in the future. Unfortunately, I do not have the opportunity to put a pump for oxygen into the water, but I hope that I will solve this problem in the future. Let's watch this experiment together!