I may have an issue with my seedlings, or plants....not sure what stage to call them yet although if i can figure out how to post my pics they will tell the whole story. First off the bigger seedlings were planted around the 11\13 and the smaller ones 3 days later. currently the seedlings are in a rdwc system, the water is 430 ppm and ph is 5.8. it apperas that the plants may be a little yellow, but not sure...this may be normal...how ever the very tips on some of the leaves are yellow to brown. This is just the very edge, not much at all! I just want to be sure im not missing something, and if i am i want to correct it before its too late... Thanks for all input
-
Happy Birthday ICMag! Been 20 years since Gypsy Nirvana created the forum! We are celebrating with a 4/20 Giveaway and by launching a new Patreon tier called "420club". You can read more here.
-
Important notice: ICMag's T.O.U. has been updated. Please review it here. For your convenience, it is also available in the main forum menu, under 'Quick Links"!
help with blackjack seedlings!
- Thread starter SkuNkWorX
- Start date
note that the yellower color pics were taken in dark and the greener were taken under m/h....this accounts for some of the color difference. I forgot to mention earlier that there is also GH subcultures m and b added to the water. im not sure if i have healthy seedlings of what...maybe i should just drain and start over? although i dont want to if this isent going to help anything.
K
Kindman69
I can't see the pics bro 
I'm growing Blackjacks and had some problems with mg def. early in seedling stage.
Try to get the pics up
I'm growing Blackjacks and had some problems with mg def. early in seedling stage.
Try to get the pics up
I wouldent worrie too much if i were you buddy, just a bit of tip burn, the plants themselves look like there doing just fine. keep an eye on them, if it gets any worse give the plants a good flush through(3xVolume of pot size), use 1/8th nutrient strength or 1/10th strenght for the flushing solution at P.H 5.5. Your PPM's sound ok now. are you using RO? if not you need to add your base/starting tap water ppm reading to your nute mix calculation( or else other wise stated). 'What nutes you using?. remember less=more especially in D.W.C. i always work it like 2-300ppm's for seedlings and increase that through the growth cycle wk to wk ie- 200 , 300, 450, 550, 700 and so on i never go over 1000ppm's and that is in late bloom with very developed plants...! hope i can help ya out, but dont worrie i doubt they gonna die they look fine..............Peace........Scroger'
K
Kindman69
A little tip burn, I would not worry too much as long as it does not progress. Certainly no MG def. They look good
Hey Skunk. Answering your VM question here to keep it all in the same place.
First it doesn't look like panic time. Just a bit of tip burn.
Until PPM is re-converted to it's original EC, it's largely babel. Sometimes I can guess at the conversion but, here I have no clue. I will say at that stage I use 1/2 tsp GH Micro and Bloom per gal. With tap of 0.5, That leaves me with an EC of 1.0 (500-640-650-700-768 ppm, take your choice) at which point I start charting EC and pH for adjustment purposes.
Which way were EC and pH drifting? If they're moving in opposite directions, that's what we want. Feed in the direction of pH movement: pH up feed more, pH down feed less.
You say you're using GH 3 part. Have you thrown part 2, Grow, in the trash where it belongs? Using Grow with such a low ppm total could mean your Micro levels are too low.
You're "adding up" the tank correctly. Measure strength after all ingredients are added.
First it doesn't look like panic time. Just a bit of tip burn.
Until PPM is re-converted to it's original EC, it's largely babel. Sometimes I can guess at the conversion but, here I have no clue. I will say at that stage I use 1/2 tsp GH Micro and Bloom per gal. With tap of 0.5, That leaves me with an EC of 1.0 (500-640-650-700-768 ppm, take your choice) at which point I start charting EC and pH for adjustment purposes.
Which way were EC and pH drifting? If they're moving in opposite directions, that's what we want. Feed in the direction of pH movement: pH up feed more, pH down feed less.
You say you're using GH 3 part. Have you thrown part 2, Grow, in the trash where it belongs? Using Grow with such a low ppm total could mean your Micro levels are too low.
You're "adding up" the tank correctly. Measure strength after all ingredients are added.
Never used it but seen hundreds who have with VG comparable results. I see all sorts of combo's with it (GHF) being a 3 part. & from what i see, most people throw the grow & say its useless and just use the blm & micro(like-Lucas) at like 0/5/10 and 0/8/16 formula's etc- do you know these ratio's? I'm not sure of the N.P.K ratio's on these mixes either, but i do know theres calculators to work it all out for you etc.
'Yeah you have Hard water dude-190ppm's, i think you'll be using micro for (HW) then if i'm not mistaken as aint the grow & blm parts universal, and it's the micro that comes in soft and hard water formulas, or am i mistaken?? What i'm trying to say is make sure you get that part right buddy. You are adding up your ppm readings correctly by the way!
Be-Lucky............Scroger'
There you go dude 'Freezerboy' has used it & your in very good hands there, i would listen to him dude!
not sure if this helps or not but at the moment my ec is 0.7 , i use the blue lab combo meter, so...i have a choice of what conversion to use...if it helps ill just get use to using EC rather than ppm which im use to. I can see where the confusion comes in though...so many ways of converting to ppm.
'You aint gotta convert shit with the truncheon', i own one myself they are a bit approximate but they last forever if you clean them tidy' & they are more than accurate enough for our purposes. Good meters!!
Be-Lucky
Scroger' (cf7 might just be a little too hot for em, i'd back it off to 6. might be ok just keep an eye on them')its actually floating between0.6 and 0.7 but settles on 0.6, so ill drain a little out and let some fresh phd h20 flow in and see what happens...yesterday i ran a gallon or so of 5.5 water through each net pot, hydroton, and rockwool cube thats burried in the hydroton to clean out anything that could have been in there...almost imediatly things started to pick up a bit...the new growth is a bit darker green...not so much the pail yellow! i think the leaves that got burnt will stay that way but hopefully it all gets better and i can chalk this up as a lesson learned! I need to start a grow journal or what ever they are are called....if anyone is interested in following that is...i have pics all the way from seedlings, i MIGHT BE missing a few notes but i can pick that back up after explaining my little crisis here. Anyone interested?
