Hydroponic Problems

I'm a first time grower and my plants are now entering its 3rd week. I'm getting kinda of nervous because I'm noticing some spots starting to appear and a little bit of yellow on a few tip yesterday. I thought maybe there was too much nutrients so I flushed the reservoir & added less. I've kept the PH at 5.8 and not quite sure what else could be causing it. Is it normal for them to do this and if not what else should I do to keep them healthy?

They look pretty healthy. It looks like a tiny bit of ph flux, but you say your ph hasn't changed. Have you noticed more spots appear since you changed the water?

U good

Bud Tipps said:

They look pretty healthy. It looks like a tiny bit of ph flux, but you say your ph hasn't changed. Have you noticed more spots appear since you changed the water?

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I've noticed a few more this afternoon but they aren't on any new leaves

Jydig40 said:

I've noticed a few more this afternoon but they aren't on any new leaves

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How are your res ppm's looking every 24 hours?

Are you noticing any increases or decreases in res ppm?

Sometimes you get spots from time to time as plants grow.

Other times it can be a deficiency or an abundance of certain nutrients.

What source water are you using?

What's it's starting ph?

Do you know the ppm's of your source water?



J

jondamon said:

How are your res ppm's looking every 24 hours?

Are you noticing any increases or decreases in res ppm?

Sometimes you get spots from time to time as plants grow.

Other times it can be a deficiency or an abundance of certain nutrients.

What source water are you using?

What's it's starting ph?

Do you know the ppm's of your source water?



J

Click to expand...

Haven't got a ppm meter yet, but the Ph level stays around 5.8 in distilled water.

A couple of updated photos & the feed in schedule I'm using

Jydig40 said:

Haven't got a ppm meter yet, but the Ph level stays around 5.8 in distilled water.

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IMO you're pissing into the wind then.

Without a ppm meter to see what's happening in the res as far as increases or decreases go then you won't know if you're under or over feeding them until symptoms become apparent in the leaves.

Distilled water is devoid of any elements and most nutrient manufacturers assume you'll be starting with moderately good tap water that already contains things like nitrates, phosphates, calcium, iron etc.

Why have you chosen distilled water over your tap water?

Do you get large calcium deposits in your kettle or on your faucets etc?



J

jondamon said:

IMO you're pissing into the wind then.

Without a ppm meter to see what's happening in the res as far as increases or decreases go then you won't know if you're under or over feeding them until symptoms become apparent in the leaves.

Distilled water is devoid of any elements and most nutrient manufacturers assume you'll be starting with moderately good tap water that already contains things like nitrates, phosphates, calcium, iron etc.

Why have you chosen distilled water over your tap water?

Do you get large calcium deposits in your kettle or on your faucets etc?



J

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A friend told me it was a good idea to grow with distilled water. I just purchased a ppm meter that read 342.

looks more like your getting some splash thru those open holes. when the nutes splash on the leaves they will get burned.

jondamon said:

IMO you're pissing into the wind then.

Without a ppm meter to see what's happening in the res as far as increases or decreases go then you won't know if you're under or over feeding them until symptoms become apparent in the leaves.

Distilled water is devoid of any elements and most nutrient manufacturers assume you'll be starting with moderately good tap water that already contains things like nitrates, phosphates, calcium, iron etc.

Why have you chosen distilled water over your tap water?

Do you get large calcium deposits in your kettle or on your faucets etc?



J

Click to expand...

You can't be serious

No nutrient manufacturer could adjust their product for all the different municipalities water supply needs

Tap water TDS (ppms) can vary from < 100 to > 400

ALSO, municipalities aren't growing meds, they use the cheapest additives they can buy

The only way to assure optimal health and well being of your plants is to start with pure water; could be distilled or RO

SeedHo said:

looks more like your getting some splash thru those open holes. when the nutes splash on the leaves they will get burned.

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That is exactly what I think. You took the words right off of my fingertips.

You really don't want any openings in your Rez that let's light in. Bad things use light to grow. You don't want any bad things growing in there.

it was to random, plus everywhere you see the spots you see open holes.
i would cover them up, some duct tape covering some cardboard or to cover the top of a net pot.

PetFlora said:

You can't be serious

No nutrient manufacturer could adjust their product for all the different municipalities water supply needs

Tap water TDS (ppms) can vary from < 100 to > 400

ALSO, municipalities aren't growing meds, they use the cheapest additives they can buy

The only way to assure optimal health and well being of your plants is to start with pure water; could be distilled or RO

Click to expand...

A lot of nutrient manufacturers don't tailor there nutrient formulas specifically to areas but they generally take national averages and come up with hard and soft water variations for this purpose.

Plant magic for example does this in the UK.


The main thing they do is look for calcium levels.

Which in RO and DISTILLED etc is zero.

Which is why when using these you need to increase Ca and Mg content.

Sometimes even a trace mix is required.



J