Ok so i reset my nutrient solution inside the cloner. I cleaned up everything. I looked closer at the roots. For me, they are not dying. I touched the brown areas. It was like a thin brown depot that rest on my fingers. The roots doesnt look damage at all. No smells.
This time i used RO water at 0.0 EC
Put 2.5grams of Maxigrow in 3L of water. Put 3ml of H202.
My PH was 3.8... Very low indeed. I used some salts that i have for my shrimps tanks to buffer the ph because i dont have the regular ph+.
It is a Gh+/Kh+ that i know well and it is raising the ph of the water.
Here is the composition:
Cations
7,05% Sodium
2,61% Potassium
13,89% Calcium
5,39% Magnesium
0,02% Strontium
Anions
1,30% Carbonate
18,72% hydrocarbonate
32,62% Chloride
16,91% Sulfate
0,00% Phosphate
0,35492% Trace elements
Put the water temperature at 21°C.
EC=1.08
PH=5.8
Wait and see.