you have a great start...You got some good advice and some a little on the edge...

your ph at 6. is fine, but you might want to lower it to 5.8 once you go to flower.

5.2 is too low...I only use a solution of 5.2 when soaking rockwool!

Advanced Nutrients tell you to lower ph each week during flower to target certain nutrients. the optimum uptake of each element is at different .points-.'s of the ph scale.

always use all the airstones you can in all your rez'z
Oxygen is paramount to successful hydro/growing and the more you oxygenate the fluids, the faster your plants will grow...This is a fact!

From the looks of your plant, you can go with an HID right now...No need to wait...The more light you put to them, the bigger/faster they grow. fluoro's are great, but if you have option of "BIGLIGHTS"...then use them. goodluck, lw

P.S. I think you have got a great start and I look forward to helping you out, whenever possible. I gotta go!!!
latewood Reviewed by latewood on . Hydro Set Up This is a great site. Thanks to the mods and all the members who dish out the information. I have a NFT System, 18/6 for lights and water pump. Growing Northern Lights in one net pot and White Widow in the other. I have 2 setups. The first one is already going using the nutriments that came with the kit. TDS meter is on the way so I can actually measure what is in the first grow. Four small containers with no info on what is in them. Just the words Base, Bloom, Grow, Catalyst. A guide Rating: 5