-
ICMag with help from Phlizon, Landrace Warden and The Vault is running a NEW contest for Christmas! You can check it here. Prizes are: full spectrum led light, seeds & forum premium access. Come join in!
PH up??
- Thread starter milo_xxx
- Start date
This is what I use. Peruvian Seabird Guano. I have a 12 ounce bottle I fill a 1/3 with the PSG pellets and the rest with water. That mix raises the ph tbsp for tbsp my mix of fish ferts that lowers it or about 1 full ph point in a gallon of ferted water. Its one of the rarer ferts thats alkaline. The new formula is 10-10-2.
G
Guest
Why would you PH need to be brought up?
Any acid will drop the pH and any alkaline with raise the pH.
The problem is what else will be added to the solution.
The only 3 substances that do not produce by-products are:-
1. Phosphoric acid which adds phosphorus only
2. Nitric Acid which adds nitrogen only
3. Potassium Hydroxide which adds potassium only
Strengths are an issue, as the reaction with sulfates as well as other molecules can break down the solubility of a solution. When you add pH adjustment solutions and you see precipitates (cloudiness) you are watching nutrients turn into insoluble powders, and the nutrient is damaged.
Phosphoric acid and Potassium Hydroxide need to watered down before pouring into the nutrient to avoid knocking nutrients out of solution.
Nitric Acid is way way too strong to use usually, and is not generally available.
To answer your question, yes you could adjust the solutions pH, but usually the damage produces worse nutrient deficiencies than if you had let the pH drift . Other compounds which can do the job often are so weak that you use litres of it to get even a marginal change e.g. citric acids, other foods and it doesn't really help. Heaps of lemon juice will change the pH but so many compounds cause problems, like sugar feeding root disease and algae... Its all too hard.
Any acid will drop the pH and any alkaline with raise the pH.
The problem is what else will be added to the solution.
The only 3 substances that do not produce by-products are:-
1. Phosphoric acid which adds phosphorus only
2. Nitric Acid which adds nitrogen only
3. Potassium Hydroxide which adds potassium only
Strengths are an issue, as the reaction with sulfates as well as other molecules can break down the solubility of a solution. When you add pH adjustment solutions and you see precipitates (cloudiness) you are watching nutrients turn into insoluble powders, and the nutrient is damaged.
Phosphoric acid and Potassium Hydroxide need to watered down before pouring into the nutrient to avoid knocking nutrients out of solution.
Nitric Acid is way way too strong to use usually, and is not generally available.
To answer your question, yes you could adjust the solutions pH, but usually the damage produces worse nutrient deficiencies than if you had let the pH drift . Other compounds which can do the job often are so weak that you use litres of it to get even a marginal change e.g. citric acids, other foods and it doesn't really help. Heaps of lemon juice will change the pH but so many compounds cause problems, like sugar feeding root disease and algae... Its all too hard.
G
Guest
Thanks for that.
When I was growing outdoors I often used fish emulsions etc, but wasnt aware to test PH and things like that.
Thanks for the education man.
When I was growing outdoors I often used fish emulsions etc, but wasnt aware to test PH and things like that.
Thanks for the education man.
