Trizkit Auto & Sidecar - Twenty20

Aruteru Worked on setting a half-automated set up that can be accessed when away from my home. Light, heater, humidifier and heat-mat are all controllable through the internet. Learned how to even out humidity and temperature properly. Have lightly watered the seedlings with a spray bottle and distilled water. Appreciate any advice that is given.

Aruteru Applied a top layer of about 3 inches of soil since my plants were stretching too much towards the light because of improper light distance. Switched from 200W Space Heater to 100W Ceramic Heat Lamp which promotes better humidity/temperature control while also saving on electricity costs. Fed plants for the first time with a mix of 7.5ml Fox Farm's 'Big Bloom' and 2.5ml Fox Farm's 'Grow Big' as per the Fox Farm Nutrient guidelines. Had a small accident where I unintendedly sprinkled crushed perlite on top of one of the Trizkit's leaves and since I was unaware of this being the cause of the white dust on top of said leaf, I instantly freaked and assumed it was White Powdery Mildew. I attempted to remove the dust with my hand, however the stress of that yellowed and dried that specific part of the leaf. Upon closer inspection of my Grow Tent camera's footage I discovered that an accidental spill of crushed perlite was the cause of the white dust that was found on the leaf, thus confirming that my belief of WPM's existence in my tent was inaccurate. Purchased a TDS meter from Apera in order to properly determine how many ppm's there's in the nutrient solution I am feeding the plants with starting this week. Any advice or comment is highly appreciated and well received.