This looks like nute burn...is it?

[Guest]

check these pics out. I had some problems getting these started but when I changed the res water and added nutes to it, these babies took off. Now some are getting "sawblade" edges to them and today I noticed one that is slightly curling at the tips and yellowing around the edges.










I guess if it is nute burn I could just dilute in my res a little and all should be well?

1st hydro grow so I am flying blind!

 

[sproutco]

I never could see burning of any of the leaves in the pictures. Maybe we could straighten out any grow problems while your in the cannabis infirmary. What is in your ferts (be exact as possible)? How many ppm's total or ec is your fert water? What ph are you using? What is the temperature of the resevoir and air? Add as many other details that you can think of.

 

[Guest]

I have pics from just a few minutes ago.

notice the lower leaf tips are starting to turn abit. I don't have a temp for the res and do not have an EC or TDS meter as of yet. will get one but for now I have to rely on my own math

 

[Verite]

The last pic is showing some signs of needing some N. What ph are you keeping the res around and how often do you check the res ph?

 

[Guest]

I have the res around 6.8 for ph. I have tried to get it down and have used almost 1/2 pint of ph down since I changed the res water but stilll i'm hovering around 6.8 do I need to get it lower? should it take that much ph down to do it? when growing in soil it seemed like we used alot less ph down.

 

[Verite]

Thats a lot of ph down but yes 6.8 in hydroton is way too high when it should be in the mid to upper 5's [5.5-5.8] You should also have some sort of idea of what level of ferts your giving them in tds or EC. Generally it only takes a few drops of ph down to drop a plain gallon of water down a full point. When I have ferts in the water it takes a bit more which leads me to believe your res might have a lot of stuff in it thats making it take so much ph down.

 

[Guest]

my res says it's a 25 gallon but I used 21 gallons of spring water and it filled right to the top. I am using triflex base, grow formula so I am actually adding 2 different substances to the res. I calculated the amount of nutes I would use based on the triflex scheduled formula for 25 gallons. I added 10 gal of water, then my nutes, then 11 gallons of water. I thought that might be too much so I pumped out 4 gall from the res and added 4 gall of spring water. My ph was then around6.9. that's when I started using the ph down that came with my setup (all of this came with botanical turbo garden setup) I was putting in full caps and mixing around but still my ph hovered around 6.8

I only have one plant that is yellowing. My best plant is ecsd x phs and it seems to be doing well. I plan to clone this one and eliminate the bagseed plants. the others are still showing the sawblade edges around the leaves but it's more noticeable on the bagseed plants.

could it be possible that when I put the cap fulls of ph down in the res that it is settling and not mixing correctly? is there a "proper" way to add the ph down that I am missing?

also, could the base formula be affecting it this much? do I need to add the base formula with the grow formula? anybody use triflex nutes? what nutes would work best with hydro and are there certain ph up/downs that work better than others?

 

[Guest]

I added some water to the res and lowered the ph to about 6.0-6.1. I ran out of ph down. I will hopefully see improvements in the next couple of days. Is it true that you can make your own ph down with hydrochloric/muriatic acid? anyway, here are more pics from a few minutes ago





why is the yellowin on this plant only?


but this one is the one I have my fingers crossed on.



I haven't topped any of the plants and they look like theyre growin good and bushy. I am going to take cuttings from this one. May end up being a mama....I hope

this is a bagseed plant so not so much worried about it but it is drooping a little..overwatering? I have my res on 15min intervals four times a day every 6 hours

 

[RuralRoute420]

^

^

either try shortening you flood times, or getting rid of the one during lights off, should clear up the drooping. were those clones? then i would expect that off the lower leaves......imo.

 

[Guest]

Not all of the plants are drooping. only the bagseed so far. all of these plants were started from seed.

should I cut back on the watering to save bagseed plants even if the others are lookng ok?

 

[Guest]

I forgot to mention that I have them under the lights 24/7. do I need to give them some darkness?

 

[Guest]

now I'm really getting pissed

now I'm really getting pissed

my ph meter is not working properly and I have only had it about 3 weeks. damn

to make things worse, the problem is spreading to another plant and this one's getting worse. I have turned back my water feeding to 3 times/day every 6 hours. I have set my lights to go off for 2.5 hours each day

Is there anybody out there....

 

[Guest]

it looks like you are using way to much nutes! they are burning. find out what ppm u rae using

 

[420KushMaster]

sounds like you ph meter may be the cause of all your problems you been using way to much ph down.

 

[Guest]

Thanks for the help.

I think you both are right. It's probably a combination of both. I was told by Verite that having too much nutes could cause me to have problems lowering my ph. I have been using a Base/Grow formula but I think I only need to use the grow from now on unless I start showing other def's

I do have a backup for testing the ph and it shows that I am somewhere between high 5's and low 6's.

I don't have a meter yet for testing ppm of res. Is there any other way? Could I just dilute with ph'd tap water until they straighten out?

 

[Core]

can't u use lemon juse or vinagre to lower ...?

 

[Guest]

can't u use lemon juse or vinagre to lower ...?

I have read that but have never tried it. should work being an acid. probably would take a whole lot because of it's acidity level.

 

[Core]

i use lemon for soil... it works great.... but i used viagre once and my plants dropt down to a minimum......i have read that vinagre is used more in hydro...but dont quote me on that

 

[Verite]

If you arent going to get a meter soon and want to salvage the plants you might want to consider transplanting to a soil medium. Most tap water is anywhere from the mid/low 300's to high 400's in ppms of tds, thats all uncontrolled elements [ lots of calcium, magnesium, etc ] You are better off using distilled or reverse osmosis filtered water. I wouldnt recommend using natural food based acids for ph down in a res. How goes the ph battle?

 

[Guest]

If you arent going to get a meter soon and want to salvage the plants you might want to consider transplanting to a soil medium. Most tap water is anywhere from the mid/low 300's to high 400's in ppms of tds, thats all uncontrolled elements [ lots of calcium, magnesium, etc ] You are better off using distilled or reverse osmosis filtered water. I wouldnt recommend using natural food based acids for ph down in a res. How goes the ph battle?

I have gotten my ph down to the high 5's low 6's. I may need to go lower? I have sent off my ph meter for repair hopefully gets back soon. I can still test with the drops though. my problems are starting to spread to other plants. I didn't really want to do soil this time round but may have to if I can't get them to stop burnin