Cyco Nutrients (1st Grow)

I am new to the forum and new to growing indoors. Here is a quick rundown of my system and some pics. Questions will be underneath.
~15 plants
~5x600w hps lights
~hydroponic drain to waste system
~2.5 gallon mesh bottom pots with ready grow and hydro ton mixture
~5 trays (3x3) with mushroom bags each tray for CO2

Here are some pictures after 20 days of veg.


I had some really small clones (reason I am still in veg) and some nutrient issues. I think I have solved the nutrient issue by cutting back on the recommended amount by about 50% plus a good amount of doctor repair.

Tonight, my plan was to give my plants their first feeding of Grow XL, but I have come upon another problem. When I mixed the Grow XL into my feeding tank the PH level dropped from 6.0 to 2.4. I haven't heard of this happening, so I am wondering if this is normal? Do I need to pump the tank full of PH Up? I assume I do.

I plan on feeding the girls Grow XL throughout this week and am wondering what I should expect (growth wise)?

Thanks

r u using the 5 600s for 15 plants?

yes, 15 plants.

sudynim said:

yes, 15 plants.

Click to expand...

5 600watt lights for 15 plants might be a little much.

5 600w will be fine you can give them as much as you want as long as you have right ventilation system setup and to your question yes that is normal for the ph to drop that much you just top her up with ph up cyco xl does that because the Phosphoric Acid when mixed with water activates which make it drop into a acidic ph just top and have no problem and be ready to be blown away with i highly suggest using there product specially during flower