Name the deficiency?

Just bragging about how I never had this problem (I think I know what it is). Then Viola. This showed up over night. I don't want to lead anyone down a path so I'm not going say what I think. So if inclined please tell me what it is. A couple of weeks in. PH around 6.3ish , Hydro ebb and flow, actually just got off of hand watering this morning. So whats going on?

You are in rockwool and your pH is too high. 5.8 for optimal results. Foliar some Epsom in the meantime.

Modern Selections said:

You are in rockwool and your pH is too high. 5.8 for optimal results. Foliar some Epsom in the meantime.

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6.3 is a bit high but within range I think.

Ok then best of luck..

Modern Selections said:

Ok then best of luck..

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Wow. Is it NOT within general hydro PH perameters? Again It's a little high but well within limits. Thanks for the reply though.

No it isn't, it is too high and what is causing your problems. You asked..

Adjust to pH 5.8 and watch the plants recover is my best advice, take it or leave it.

I didn't ask what's causing my problems. I asked what was the deficiency. I could point out 100 articles that state parameters of 5.5 to 6.5 for hydro. So yes it's a bit high but not out of range.

pegboy said:

I didn't ask what's causing my problems. I asked what was the deficiency. I could point out 100 articles that state parameters of 5.5 to 6.5 for hydro. So yes it's a bit high but not out of range.

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Maybe the ph within the rockwool is higher than your input.

Lol then what do you want?? It's a cal/mag issue related to your pH being too high. Why start a thread then argue??

Show me one good hydro grower running pH that high.

Modern Selections said:

Lol then what do you want?? It's a cal/mag issue related to your pH being too high. Why start a thread then argue??

Show me one good hydro grower running pH that high.

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Calcium. bingo. So tell me at what PH in hydro would calcium stop being taken up. Again I'll point to 100 articles that suggest its way beyond the upper end of even 6.5 in hydro. So yes I know what the deficiency was and the reason it's low is because I've been very light feeding. Hence why I was not asking for a solution to the problem. Do me a favor and look up the upper limits of ph for calcium take up. It's way higher than 6.3. As far as as your suggestion to show good hydro growers there's probably a million that have ph that fluctuate way beyond and below 6.3. In fact they might fluctuate ph intentionally. I certainly do. And yes I indicated that my ph was SLIGHTLY high. But at 6.3 Its not locking out calcium. But thanks for the advice on hydro growing.

Not a hydrogrower and just a thought but is your ph stable and/ or could swings be causing that? It does look like a ph issue imo but……

I don't have to look up anything, I graduated from college years ago, I'm not posting questions about what's wrong with my plants and posting pics of plants with issues on the interwebs.

In my experience anything over consistent pH 6, issues begin to arise in hydroponics.

I said, show me a good hydro grower who deliberately sets their pH at 6.3. ain't going to happen because good growers know better. A slight pH rise is good at the end of the week, 6.1, before res change and reset to 5.8. and yes, I change the res out every week.

So you are underfeeding your plant intentionally? I guess I don't understand this thread. You asked, I told you the problem and solution so I tried to help.

Modern Selections said:

I don't have to look up anything, I graduated from college years ago, I'm not posting questions about what's wrong with my plants and posting pics of plants with issues on the interwebs.

In my experience anything over consistent pH 6, issues begin to arise in hydroponics.

I said, show me a good hydro grower who deliberately sets their pH at 6.3. ain't going to happen because good growers know better. A slight pH rise is good at the end of the week, 6.1, before res change and reset to 5.8. and yes, I change the res out every week.

So you are underfeeding your plant intentionally? I guess I don't understand this thread. You asked, I told you the problem and solution so I tried to help.

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So I'm going to regroup and take this again from the top. I made the post this morning with a 95% idea of what my particular deficiency was and how to fix it. I'm new to the forum so I put up the post for the knowledgeable and beginners alike to try to generate some discussion and ID the deficiency..

Lets remember I never once asked for advice. The post is titled "Name the deficency" Not "I want help" or anything resembling fixing the problem.

You pipe up with the notion that my calcium deficiency would be best fixed by lowering my PH? no?

I nicely reply that my PH is a bit high and not a problem and you get your nose out of joint with my reply and absolutely insist that my PH needs to be lower.

Let me say that THIS IS ABSOLUTELY THE WRONG ADVISE for correcting early stage calcium deficency. WRONG WRONG WRONG. IF in fact the plant wasn't taking up enough calcium (and there was enough in the solution) the proper advice would be the exact opposite. Maybe to bump the PH up. So in fact your college education did nothing in this case but dole out bad information and the exact opposite of what the solution would/could actually be.

Lowering PH does not increase calcium uptake. The fact is that calcium uptake inreases as PH goes up. Again I will state that I am within the PH perameters of whats exceptable for hydroponics. Even at 6.3. (in fact I've had PH creep to over 7 with no adverse reactions.)

Now let me explain why I start so low with nutes and why I'm not too concerned with PH early on.. For one most plants handle it just fine early stage. This particular cultivar obviously is a little hungrier for calcium than most I've grown. The reason I start low is that inevitably at some point the rockwool will start building up salts. Always has always will. As root balls get bigger it gets harder to flush out so I start low (ph is not an issue). I'm sorry if I hurt your feelings but I'm not going to humer you and accept completely wrong and opposite advise . Once again lowering ph to increase the uptake of calcium is just plain WRONG. I will make sure from now on not to take your advise from here on. College degree or not. Thanks but no thanks.I'd like other opinions here as well if they think I'm wrong.

CALCIUM UPTAKE GOES DOWN AS PH Goes DOWN.....NOT UP.

pegboy said:

So I'm going to regroup and take this again from the top. I made the post this morning with a 95% idea of what my particular deficiency was and how to fix it. I'm new to the forum so I put up the post for the knowledgeable and beginners alike to try to generate some discussion an ID the deficiency..

Lets remember I never once asked for advice. The post is titled "Name the deficency" Not "I want help" or anything resembling fixing the problem.

You pipe up with the notion that my calcium deficiency would be best fixed by lowering my PH? no?

I nicely reply that my PH is a bit high and not a problem and you get your nose out of joint with my reply and absolutely insist that my PH needs to be lower.

Let me say that THIS IS ABSOLUTELY THE WRONG ADVISE for correcting early stage calcium deficency. WRONG WRONG WRONG. IF in fact the plant wasn't taking up enough calcium (and there was enough in the solution) the proper advice would be the exact opposite. Maybe to bump the PH up. So in fact your college education did nothing in this case but dole out bad advise and the exact opposite of what the solution would/could actually be.

Lowering PH does not increase calcium uptake. The fact is that calcium uptake inreases as PH goes up. Again I will state that I am within the PH perameters of whats exceptable for hydroponics. Even at 6.3. (in fact I've had PH creep to over 7 with no adverse reactions.)

Now let me explain why I start so low and why I'm not too concerned with PH early on.. For one most plants handle it just fine early stage. This particular cultivar obviously is a little hungrier for calcium than most I've grown. The reason I start low is that inevitably at some point the rockwool will start building up salts. Always has always will. As root balls get bigger it gets harder to flush out so I start low (ph is not an issue). I'm sorry if I hurt your feelings but I'm not going to humer you and accept completely wrong and opposite advise . Once again lowering ph to increase the uptake of calcium is just plain WRONG. I will make sure from now on not to take your advise from here on. College degree or not. Thanks but no thanks.I'd like other opinions here as well if they think I'm wrong.

CALCIUM UPTAKE GOES DOWN AS PH Goes DOWN.....NOT UP.

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LOL, . C'mon Man, he's the new master grower.