Pics!!!SOS I've got yellow tips. Help a newbie out.

sancho

sancho

Well-Known Member
My girls are almost 30 days old and they seem happy, but they have yellow tips. Can anybody help diagnose these from these pics? I'm using GH grow flora series at 2-3 tsp. a gal. and a little hygrozyme 8ml a gal. Cause my roots were turning brown (they're fine now). Is it a Ph prob. or nute burn? This is only my 2nd grow and my 1st aero grow. My first grow sucked. Help please.
 

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largebudda

largebudda

Member
sancho said:
My girls are almost 30 days old and they seem happy, but they have yellow tips. Can anybody help diagnose these from these pics? I'm using GH grow flora series at 2-3 tsp. a gal. and a little hygrozyme 8ml a gal. Cause my roots were turning brown (they're fine now). Is it a Ph prob. or nute burn? This is only my 2nd grow and my 1st aero grow. My first grow sucked. Help please.
Click to expand...


I am leaning toward nute burn. flush your pots with water til they run clear. let you babies drink that water over a few days then start adding your nutes back at half or quarter normal for a week or so.

What is the temp at the canopy of your ladies?
 
sancho

sancho

Well-Known Member
the temp of the canopy has kinda varied lately, it was at 74-78, ive been doing cab upgrades, i have ac,and a chiller for the res so i started co2 and took the cab up to 86-88 and kept the res 66-69, i dont have a co2 moniter so im not sure of my co2 level, so im back to 75 intell im sure i have proper co2,
 
largebudda

largebudda

Member
I would flush your tank with water for 24-48 hours and then run a new batch of nutes, looks like ya might have fed them too much too early.
 
sancho

sancho

Well-Known Member
thanks ill start fist thing tomrw, man i need a co2 metrt/controler, have you seen any deals?
 
morrisgreenberg

morrisgreenberg

Well-Known Member
a good one is like 600bucks, sentinel makes a nice one, you have nute burn sancho, you have a ppm meter? you can just add fresh water to dillute your nutrientsolution
 
morrisgreenberg

morrisgreenberg

Well-Known Member
this is all you need for c02, just remember if you run a carbon filter, dont run it all day cus that will mean you need to run co2 often, just run a few cycles daily and you will be good, besides the amount of co2 you need for that cab would be like .25 sqcf for 5 mins to get it up to 1500ppm
 
sancho

sancho

Well-Known Member
thanks morris ill start the flush today, i used the chart to set my correct rate of flow but with the ac on alot im not sure how much stays in the cab, ive purged a ton of stuff welding and know how easy it is to lose inert gas, ive seen some co2 moniter/contol for 320 on e bay, i can prob make it happen this tue. i even dropped my cab temp intell i get one. my girls are only 1ft tall right now, im not sure how long i should veg for?
 
morrisgreenberg

morrisgreenberg

Well-Known Member
they look great, if you have indica plants, which thats what they look like, they should double during flowering, so if you can only go 2ft tall, then flower at 1 ft, the plant will do most of its growing during the first 3 weeks of flowering then slow down to thicken out bud sites, check this link out https://www.rollitup.org/do-yourself/694-indoor-growing-systems.html

also the a/c only recirculates air within the grow room, so your not losing anything, just to make sure, everytime you open the doors you will lose, so maybe a co2 cycle should go on after you do some garden. the air being blown out the back of the a/c is the hot air that comes in on the side vents in the back of a/c, this has no bearing on cab side a/c
 
largebudda

largebudda

Member
This is some really good info on C02

Was wondering---
I am running a carbon filter all day, it runs through my light and the to exhaust. My temps are right at 75-80 ontop the canopy and 5-6 degrees cooler below the canopy.

Do you think I need to runn CO2... will i see great improvements on my budding.




:::Only reason I had mentioned that he flush the whole tank.... If there is too much salt build up on the roots then they are not going to take any nutes even if you dilute them. It happened to me last grow and I freaked out. Had to dump 50 gallon res and flush nutes. Now I know all i had to do was use a 5 gallon bucket and switch hoses , but a ebb and flow is a bit diff the a DWC or Aero:::
 
morrisgreenberg

morrisgreenberg

Well-Known Member
i personally have a more elaborate method of flushing, for my systems i let the pumps run, add my fresh water source from a hose/sink, at the same time i run a pump, pumping out the water in the rez....this way i constantly check the ppms and watch them get lower, i have a drip system in a tray, lots of salt gets stuck to the clay pellets, i can run a fresh rez no nutes and the drain water would be 250ppm, mind you my tap water is 25ppm, so as i run the system and fresh water gets pumped to all plant sites, i have the other pumping out, all the while fresh water is coming in, therefore i dont flush the system with that 250ppm drain water thats been recirculating, once i get the drain water back to under 50ppm i am happy and know i did a good thoro flush, having water that strong will mess with your ph and all the rez changes in the worl wont help, i have to do this once a month and tro be honest i used flora kleen and clearex and i think i wasted my money, i believe they are great for container plants. i understand this isnt feasable for most who dont have a hose nearby and the extra pump laying around
 
morrisgreenberg

morrisgreenberg

Well-Known Member
i believe adding co2 will eliminate a need for constant exhausting, most people are exhausting to get rid of odor and for those who dont use air cooled hood to get rid of heat and humidity, the co2 will allow you to run higher temps, now you say you want to add a carbon filter? no problem, instead of ducting out the fresh air, just leave the filter/fan with no duct, it will "scrub" the room air without needing to make another hole in the wall, also you wont need to bring in fresh air into the grow room, so theres another hole in the wall and fan that you dont need. have an air cooled hood and co2? no problem, just creat a hole in the wall for fresh air intake that runs thru the fan and into your hood and out the room thru an exhaust hole, this way the grow space air isnt effected. the way you have it running now is just fine for your setup, the most economical way of having a setup with carbon ffilter involved is haveing your filter attatched to yourfan, sucking stinky air thru the filter and blowing it throu your hood to cool the light and out the room, this method knocks out 2 birds with one stone, but you will need at the very minimum an intake for fresh air to provide what little co2 comes in with it and also for colling purposes, but you will find using this method that your co2 can is gonna run dry very soon, so if you want air cooled hoods, carbon filtrtation and co2, i advise you to get a 2nd fan just for the lights and let the carbon filter run periodically to preserve co2, its obvious you need to run the fan all day to cool lights, at this rate you can blast co2 and the plants wont get any cus it gets sucked out so fast. you can figure out how long to run co2 with the calculator and if say it says to run for 30mins daily, run it 3-4 times for shorter periods directly after your filter runs, your question about should you add it? its not necessary but, if you want to take it to the next level and depending if you have decent harvests it just may pay for itself after your first grow, depending on scale of grow, but heres the double edged sword, you dont want those crazy high temps if you run hydro, if you were in soil no need for a/c let that bitch get up to 95
 
sancho

sancho

Well-Known Member
I finaly got my new 450 inline fan today so i can switch out my 265 cfm thats been cooling the light and use it to power my scrubber, my girls dont smell much yet but when they do ill have it on a timer that i can i can set it to go on as much as needed and time my co2 to resupply when it kicks off but im looking hard at a co2 moniter/control to make life easier. im also using some duct to pull the hot air from the back of the ac for my intake to cool my light to further cool the suroundind area. morris im a chickin to go to hot in my grow intell i get a moniter, with the fans and ac on in that little area its pretty windy, i cant help but to wonder how much leaks out, my nuts are to little to go in the 90s without a moniter, but im buying one in less than a week,then its 90s!! ps i hope im not graded on spelling
 
badbert

badbert

Active Member
Those are some seriously healthy looking plants, I do not believe a flush is necessary... that fine an edge of nute-burn means that they are consuming at least 99% percent of it. I would just back off a litle bit and see how things work... They look super healthy to me! In theory don't you want to feed them all the nutes they can handle, to maximize their potential? It isn't like they have brown burnt leaves, alittle yellow around the edge is not that bad in my opinion.
 
sancho

sancho

Well-Known Member
thanks thats good to hear! im trying morris advice first and going with half strength nutes, i just checked them and i think there doing good, i think im going to switch to 12s when they get 18"tall, i havnt done any pruning on these and would love some yield advice, should i top or fim? and if i should when should i do it?
 
largebudda

largebudda

Member
morrisgreenberg said:
i believe adding co2 will eliminate a need for constant exhausting, most people are exhausting to get rid of odor and for those who dont use air cooled hood to get rid of heat and humidity, the co2 will allow you to run higher temps, now you say you want to add a carbon filter? no problem, instead of ducting out the fresh air, just leave the filter/fan with no duct, it will "scrub" the room air without needing to make another hole in the wall, also you wont need to bring in fresh air into the grow room, so theres another hole in the wall and fan that you dont need. have an air cooled hood and co2? no problem, just creat a hole in the wall for fresh air intake that runs thru the fan and into your hood and out the room thru an exhaust hole, this way the grow space air isnt effected. the way you have it running now is just fine for your setup, the most economical way of having a setup with carbon ffilter involved is haveing your filter attatched to yourfan, sucking stinky air thru the filter and blowing it throu your hood to cool the light and out the room, this method knocks out 2 birds with one stone, but you will need at the very minimum an intake for fresh air to provide what little co2 comes in with it and also for colling purposes, but you will find using this method that your co2 can is gonna run dry very soon, so if you want air cooled hoods, carbon filtrtation and co2, i advise you to get a 2nd fan just for the lights and let the carbon filter run periodically to preserve co2, its obvious you need to run the fan all day to cool lights, at this rate you can blast co2 and the plants wont get any cus it gets sucked out so fast. you can figure out how long to run co2 with the calculator and if say it says to run for 30mins daily, run it 3-4 times for shorter periods directly after your filter runs, your question about should you add it? its not necessary but, if you want to take it to the next level and depending if you have decent harvests it just may pay for itself after your first grow, depending on scale of grow, but heres the double edged sword, you dont want those crazy high temps if you run hydro, if you were in soil no need for a/c let that bitch get up to 95
Click to expand...


I cant thank you enough for your insight! I did it when someone has worked with and can explain it. Makes it easier to pass great information on to others!! TY +REP
 
sancho

sancho

Well-Known Member
i do know one thing ive learned tru this first grow is im going to build a much better res set up, my rubbermaid tub is cheap and doing maintenance is kinda micky mouse, theres a tread on rui somewhere with some black with yellow lid res, that look pretty nice, has anybody seen kick ass res plans anywhere?
 
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