2x2 is not very large for 4 plants. The real minimum area is 1 sqft for one plant. That really is not much if you think about it. Thatā??s only 6ā? on each side of the main stock for shoots to grow. If you only grow shorter single cola plants then you will not have shoots growing on the side and the plant will be thinner. You could then fit the number you want to grow in that space. Itā??s still tight but with Mylar it would work. 2x2 is not enough room for sidelight so you can only grow with top light.

I meant nothing disrespectable at all. In truth I thought that short statement saved me from writing out this long worded explanation. Guess I was wrong.

Anyway how are you monitoring the Ph and the TDS?

Donā??t forget about monitoring the temperature under the lights at the top of the canopy 24/7 with a remote temperature probe.