Nice . now you are in control from day one. Just ask when you have a question. And an fyi, turn off the lights when you take pictures. It turns people off when the pics look red or purple.
Remember at this age water very little and don't water the base of the seedling water at the edge since you are in solo cups. Make them look for the water thus helping them root. Light wise, 50w per sq ft is optimal. At 150 your at 37w, it's ok but if you have the ability to turn up your lights do it. Just make sure they are high enough. Good luck.
Here's how I was taught to water seedlings.
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