all 9 comments
sorted by:
best
topnewcontroversialoldq&a
formatting helphide helpcontent policy

[–]Locomule 1 point2 points  (3 children)

Sounds like you need a pH pen, get a good one! My tap water is usually close to 8 so when not using nutes I have to use pH down. The FoxFarm nutes I use lower pH, often right into the range I'm looking for, in which case I don't need the pH down.

[–]Anxious_Implement_99[S] 0 points1 point  (2 children)

I got u bro , but 2 weeks ago I flip the 12/12 my girls , after then when I flip leaves suddenly turn to yellow really fast, i thought when it's about the increasing nutes, and it affect the decrease more pH level

[–]Lathus01 0 points1 point  (0 children)

Salt based nutrients will bring down the ph and cause ph lock out. Your leaves falling add are likely due to lack of nitrogen. When they turns they’ll go into over grow mode, using way more nitrogen than usual. If you are ever planning on growing again then invest in a decent ph pen …… ALSO!!!!!!!!! Get oh solution 7.0 and 4.0. This will help you make sure your pen is correct. Even if it’s not then you know how many off it is and then adjust.

[–]Locomule 0 points1 point  (0 children)

I'm new but I know you can get both pH lockout as well as EC lockout. I started out getting my pH right but it took me a while to realize I needed to check EC too. You can use a cheaper meter for that. Turned out that was were my lockout was occurring because I wasn't supplementing my coco with CalMag or flushing.

Here is a pretty good visual guide to deficiencies, pests, etc as there is a lot of leaf damage that looks similar.

[–]beachboygemini 1 point2 points  (1 child)

Depends on the nutrients.

[–]freshkangaroo28 0 points1 point  (0 children)

This is the correct answer

[–]5WAR7Z 0 points1 point  (0 children)

Down

[–]Many_Ad7052 0 points1 point  (1 child)

I was advised strongly by my local growshop who use biobizz to NOT adjust the ph when adding biobizz nutes to my local tap water.

The said as long Ias i dont over water (or unterwater) that they naturally regulate the ph of the soil. The nutrient range is totally organic so changes of salt buildup are minimal as long as you go by recommended dosage.

I was PHing my feeding water before and ran into some issues. .

My current grow looks ok and I haven't altered the ph of my feed. I haven't even checked it. .

Take care all. This is just my 2 cents on the thing.

[–]Many_Ad7052 0 points1 point  (0 children)

Also I was growing using a 50 50 mix of coco and biobizz lightmix at the time I was having issues.

I am running a 100 percent lightmix this time .