BlueBerry fem seeds man seeds

i germinated with the wet paper towl method took around 2-3 day for the seed to crack once germinated i planted into a 500ml plastic cup using bio bizz light mix and watered with tap water....which is very soft where i am from in the (uk) i just had a little house bulb over her in a propergation tank for a week then moved her under the sf1000 soon as i seen the first set of proper leaves about a full week in. i watered with tap water and bio bizz root juice at around 0.5ml per lt off tap water i did not ph and the water settled at 100ppm and 7ph.. i dunno if my cheap ppm meter is working but what effs