Soooooo
You just let plain water sit in your bucket?
No nutes? Ok, maybe u are using, read it as if u just fed them
Any bubblers?
What is House and garden nutes? Pic
I usually never run my lights below 80-100%
All QB lights
Seedlings are in solo cups, below my veg plants
Veg at 20-24"
So solo would be around 30" ish maybe a bit more
Never an issue