Need help exodous cheese

I'm doing a exodous chees plant from seed it's about 9/10 days old I fed it canna veg fro the first time yesterday but before I fed them my first cannabis leaves had yellowish on then but it's spreading a bit I'm using 24/0 on light 125 watt bulb about 9 inches away from it also using a hydroponic system fed it canna aqua vega it's about 5 inches maybe a bit bigger got set of another leaves coming from the middle of them aswell does anyone no what this is or am I in trouble please help

Cant upload pics until tomora but I will due to using my iPad please help really worried