Need help !! My plants are sick for some reason!

Hello ! I have big problems with my plants.. Please check the pics and help me understand what is this?
Im growing in All-Mix soil by BioBizz, I've been using BioBizz Alg-A-Mic, BioBizz BioGrow, BioBizz BioHeaven, BioBizz Root Juice..
They grow under 600W Dualspectrum HPS - Air-cooled. 18inches from the top.
What is wrong with my plants?
They look really sad.

Maybe too many nutrients? Try and keep it simple - just water and light nutrients until she builds up enuf strength in flower to handle more. They also look slightly over watered if you ask me.

do you adjust your Ph before feeding?
waht's your soil Ph?

I dont have ph meter, I cant tell but I'm using only BioBizz products.

Badjaka22 said:

I dont have ph meter, I cant tell but I'm using only BioBizz products.

Click to expand...

pH will change depending on what pH water you use, and the nutrients as well.. I'm not experienced grower but even simple cheap ones can help you recognize bad sources of water ect, my tap water is little over 8 pH, not really good idea for me.

if you do buy one, might want to invest in ppm meter as well, something I need too :/.

you get what you pay for, the cheap 10$ pH meters are ok when calibrated but aren't near quality of the high end meters.

could that be Mg deficiency?

In my opinion 18" above the plants with a 600w fixture is too close. What's your temps like at the plant? I would back it off to around 30" at least.

Nice hands If it was me I would hit them with cal-mag, if you don't have any get some, if you can't get some epsom salts and put a teaspoon into a gal of water and mix well and water...g/l

i already did some epsom salts on the yellowing one today, when should i see results?

You need to check your PH. Looks like it needs nitrogen on the yellowing plant. Calcium on the rust spotted plant.