Also ph problem, so high!!!

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newbie187

Member
waterdawg said:
Never used vinegar or lemon juice but do use phosphoric (ph down) and sulphuric acid (battery) to lower Ph. And you better get some. You could also use ph perfect line of nutes but not sure if its used with coco. I do flood and drain.
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Okay thanks, I read using phosphoric acid is good as it is useful for them. Now I'm trying to source that locally before I have to order online. Found some PH down at the pet store but it is for aquariums, will it be suitable? Flood and drain as in you fill it until 25 - 30% runoff?
 
N

newbie187

Member
oneLoveone said:
here you go get this and you will be fine http://www.weedgrowingsupplies.net/general-hydroponics-ph-down-1-quart/
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cheers mate saw it in the shop so I will pick it up. what are the ingredients in this?

JonnyAppleSeed420 said:
First what did you do with your coco before you planted? Did you add rockwool croutons or perlite, did the block of coco require soaking, some brands do. PH down is the only way right now but if you didn't buffer your medium it may be a battle right to the end. If you already have plants in the medium then running 5.6-5.8 won't hurt but will not bring it into control, if you haven't planted yet then soak the medium in a 5.0-5.3 overnight, this may bring the ph down...JAS
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I watered the coco after I transplanted into it. Used root riot plugs, this was a bag of coco already moist. The ph of the coco is 6.8, plants are in there.

tip top toker said:
A bit of a myth. water contains chloramine these days, not chlorine. Unless in sunlight, this will take a long time to dissipate.

for the OP: My UK water was pretty much the same as that when i grew. High ph and high ppm, very hard water. It never caused an issue. I just chucked ph down into it after adding nutes and all was fine.

You will be absolutely fine using ph down for growing weed. Everyone else seems to manage just great.
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Ph down from a grow shop or a pet store, meant for an aquarium? is there a difference?

spek9 said:
You were told wrong. I got a half pound from my last 3-plant crop where I used exclusively citrus acid and baking soda to manage my pH, and I have 15 new plants almost a month in flower, four beautiful mothers, and ~12 new clones in my cloner all which are under a lemon juice/sodium bicarbonate (baking soda) regimen.

Be careful of who's advice you take, and research everything you hear before you blindly follow.

-spek
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Interesting mate, I have been reading up for ages and I don't believe you're wrong. I have a few seeds of the same strain so I might vary the ph and see if there is a true difference!
lilroach said:
AAAAGGGGHHHHHH!

The dreaded PH myth. First, soil acts as a buffer to high PH. I have 8.2 PH and feed right from the tap to soil and have zero problems.

Ask yourself this: Do farmers adjust for PH? No. When you water your garden with a hose, do your plants do ok? Yes. Do trees, bushes grass, etc. etc. get the "perfect" PH? No.

As far as chlorine in tap water.....there's no proof that the level of chlorine in drinking water has any negative effects to soil or plants. I'll point to watering your garden with a hose as an example again.

Do professional pot growers monitor and adjust their PH? Yes as it's their focus on creating "perfect" growing conditions. But to point to PH as the cause of many of the maladies of plant problems is 9 times out of 10 the wrong advice....and while someone chases "the perfect PH" the plants suffer because the true problems are unresolved.

Look at any of my grow journals....you won't see nute burn or deficiencies, and you won't see yellow leaves either. My plants are as healthy as can be and I water right from the tap....high PH and all.
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lilroach said:
I didn't see that he wasn't growing in soil.....sorry about that. You are correct, many farmers have their soil tested for many things, and PH readings are included. I know of NO farmer that adjust PH in their soil though unless it's waaaay out of whack.
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So growing in coco, I should adjust PH?
 
I

IndicaDom

New Member
newbie187 said:
Hi RIU,

I had just finished another post when I remembered about my massive PH reading earlier.

I had only just got my PH pen and calibrated and went to work. I tested another solution, some labelled mineral water and then my tap water.

This was reading 8.4!!

I know this is too high from reading on here, I then went and checked the coco and this was mixed with a bit of water and read 6.8.

I'm worried now that I will start feeding nutes what will happen??

How about if I buy a filter that people buy in shops like a kettle? I can't get a RO atm and nowhere around me sells distilled water. Thus far I have used some mineral water and water from a kettle.

I'm using Coco Coir Professional Plus and intend to use Canna Coco A & B.

Please help guys!
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pH down, boom, problem solved. Did you soak your coco?
 
waterdawg

waterdawg

Well-Known Member
I didn't see that he wasn't growing in soil.....sorry about that. You are correct, many farmers have their soil tested for many things, and PH readings are included. I know of NO farmer that adjust PH in their soil though unless it's waaaay out of whack.
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Actually they do adjust PH quite often with the addition of lime. Typically though your right and with organic (which my fields are certified) its even less of a concern. But we're talking indoor controlled growth not bush weed lol. I never worried about PH with my many huge outdoor grows but certainly monitor and adjust indoor hydro grows (sterile).
 
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