Are you growing designer genetics or bagseed?
Bagseed

Are you plants from seed or clone?
Seed

How old are your plants total?
26 days

Are your plants in flower?
Just started 12/12 a few days ago

How big are the plants (in height and # of nodes)?
About 6 inches tall, 5 nodes

What type of medium are you using and what is its makeup?
DWC with one airstone

What size planter are they in?
5 Gallon

Chemical or organic fertilizer?
Chemical

How frequently do you water and how much do you use?
Sits in water

How frequently do you feed them and how much do you use?
at first 5 tsps of 20-20-20 fert, now after flush, 1 tsp
Also, added H202, Superthrive, 1 tsp of Epsom Salt (now)

Have you seen any bugs in your garden?
no

What size light are you using?
600 Watt HPS 32 inches from tip of plant

How big is the room they are in?
see picture

Do you have ventilation?
Yes, a lot.

Started out with 2x 65 Watt Fluorescent lights (see picture 1)

Started on 17/7 Light cycle for 17 days,
Switched to 14/10 Light cycle for 6 days
Switched to 12/12 Light cycle for 2 days now.

about 3 days ago, I woke up to a fan that had fallen on top of the smallest plant (the one on the left behind the empty one)

pH is now within 5.5-6.0 probably about 5.8 or 5.9 Tested twice with strips to confirm.