First Indoor Grow - Living Soil

I've grown a couple of autos outside but this is my first indoor grow so bare with me. This week covers the first two weeks from seed. They'll be grown in living soil with Ecothrive amendments later on. I used a very small amount of BioBizz Fish-Mix (1ml/l) in one watering as they were showing signs of nutrient deficiency early on. The Ecothrive Neutralise is an organic dechlorinator for tap water which is added at 1 drop per litre. Great white was used when transferring the seedlings to their 3 gallon pots. Friends seem to have good results with it so I thought I'd give it a go. Grown under a QB288 r-spec quantum board. Dimmed down currently. Looking pretty healthy now though so I'm pretty pleased at this point. They'll be topped and LST'd (hopefully to good affect!) once they're in the main tent. Happy for any pointers/questions you may have :)