you could mix some fish blood and potash (cant tell you where to get this, coz im from UK) to some soil and repot into bigger pots like haze said. this should give it all the food it needs until harvest, but please read the exact requirements to mix with your soil and do them 1/3 strength instead = 2/3 strength nutes total (1/3 fishblood & 1/3 potash). this is about all i can help you with. good luck.