First Photoperiod run

Hi all. One week from seed over. She's looking well so far. Just started giving her some canna start and rizotonic. Currunt intake Rizotonic- 1ml per litre Canna start- 1ml per litre Ph around 6.2 to 6.3. I am currntly feeding her every 2 days around 0.5 litres My light is set to 20% of 200w and will increase to 40% once the first set of fan leafs come through. The distance the light is from the top bit of the plant is 25cm. I am open to recommendations and advise from you all :).