I see what looks like paper cups from your locally run coffee house? I would use plastic.
And those cups appear to be sitting in a little puddle of water inside your clear plastic round saucer. I would not leave any water in there.
The
Kind LED has the number 100 on a digital display. Does that number correspond to max lights on(percentage)? Can you dim that fixture down?
Humidity: 10 - 99% sitting at 74%..... I would recommend getting this number down, to below 60%. Reset that max/min and give us a new reading for a 24hr time period.
Temp: 66.9F - 97.9F sitting at 87.6F..... If your temps are getting that high(97.9F) for any length of time, that can be detrimental to good growth. 66.9F is ok for lights out period. But lights on you want to keep it below 80 unless you are using CO2. Same here - reset max/min and repost new 24hr reading.
Also as far as watering... you will get the feel for the weight of your cups. But general rule of thumb for soil... stick your finger in the soil... if it is dry 1 inch below surface, it probably needs a little h2o.
Kids look healthy, good job so far.