Help my plaants

[Growerin]

Hello Growmiees ,

I use BioBizz as a fertilizer. The temperatures fluctuate between 19°C and 25°C.
The humidity fluctuates between 50% and 70%.
The pH value thing is a bit strange for me. First I had a pH value of 7, then I used the pH-Down from BioBizz and tried to get the value down to 6-6.3. Now the pH value at the bottom of the pot is 4.5 pH and 6.8 pH at the top. How can I distribute the pH value evenly?
Is the EC value important? I don't have a measuring device for this yet.

What does my plant have I don't understand it anymore? I have now ordered CalMag from BioBizz and potassium from Canna fertilizer.
What do you think?

XOXO from Germany

 

[Phytoplankton]

It looks to me, like a ph or nute lock issue. What are you growing in? If it’s a commercial bag type soil, unless it’s peat or coco base, I’d simply ph my nutes to about 6.2 and water with that, don’t chase runoff, or soil ph. First thing I’d do is flush the media very well and start with a new watering/fertilizing regime, just ph your input water/nutes to about 6.2. If it’s a coco or peat base soil, I’ll defer to others. EC isn’t nearly as important in soil as in coco/hydto.

 

[Dime]

You could add some lime before you plant

 

[chilliwilli]

I think the 19°C is too low for nights temps. How is the ground temp? From the pics i see a tent(on the floor), my quess is that the room is a little to cold.

 

[Creeperpark]

Your pH has dropped very low from too much fertilizer and not enough buffer. What kind of water are you using to start with? The only time one should add acid or pH down is if the tap water has a high EC. If you get an EC or TDS meter you will know what you have at any given moment. Both meters are very important when trouble shooting.