[HELP]Can anyone tell me what's wrong with them? (lots of hq pics)

The 2nd blueberry is 14 days old and cursed like the previous 2nd blueberry, the other ones (blueberry1 and buddahs' sister 1 and 2) are 21 days old. The soil is biobizz all-mix, i did not fertilize. The water's ph is 6ish. I've a 250W MH 35cm (13.7795 inches) away, 17/7. The temperature ranges from 28 to 21ºC ( 82.40 to 69.80ºF). Humidity is about 50%.

bb1 bb2 bs1 bs2 1 2 3 4 5 6 7 8 9 10 11 12 13

can anyone help me?

looks like nute burn, try flushing but it looks like very small nute burn

wow,,, I have the same thing happening to my friends blueberry plant (reveg),, and hes not using any nutes,,, well,,, he used 10-10-10 last week to try and help,, but hopefully you can get this under control, sorry I cant help you yet....

I checked out the bio bizz all mix product and it said they made a light mix for seedlings and cuttings, however it didn't seem like the mix should be too hot. Although they do look like they are over fed so I would keep watering with plain water. Also what grow tent do you have, I have heard of the off gassing issues with those, but I'm not sure.

humidity is your problem my friend. it just too low. buy yourself an ultrasonic humidifier (£20 argos) nutrient burn will occur when the humidity is too low as the plant will be too buy transpiring (if thats how its spelt) water so the nutes just build up. i can tell this from the quality pics you provided. let me know how it goes.

Humidity is not the problem - my humidity stays well below 30% as low as 13%, and I have never had a problem.

Ferretfriend said:

I checked out the bio bizz all mix product and it said they made a light mix for seedlings and cuttings, however it didn't seem like the mix should be too hot. Although they do look like they are over fed so I would keep watering with plain water. Also what grow tent do you have, I have heard of the off gassing issues with those, but I'm not sure.

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Thanks mate! I'll do that.
The tent is a dark street 40, this one http://www.france-hydroponique.com/darkroom-street-d549.html

apasunee said:

wow,,, I have the same thing happening to my friends blueberry plant (reveg),, and hes not using any nutes,,, well,,, he used 10-10-10 last week to try and help,, but hopefully you can get this under control, sorry I cant help you yet....

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whenever you have news, please tell me

and good luck to your friend too

Please don't count out humidity. in veg it should be around 80%, never below 65% but in flower should never be below 40% if you fail to keep within these LEVELS OF ACCEPTABLE HUMIDITY then you will have problems as you are. please don't let ignorance reduce your yield. Between 13% and 30% you say? Leaves curling upward? Nut burn?


Even when your drying your bud the humidity should be at 40% this is the lowest it should ever be. How long you been growing? Took me over a year before I got to grips with humidity.

high humidity is your friend! just watch for mould or get a sulfume hotbox

stumpy1007 said:

high humidity is your friend! just watch for mould or get a sulfume hotbox

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just keep the air circulating. Are you using chlorinated tap water?

it dont look that bad just plain water for a little while and it will bounce right back

I might have to consider the humidity issue,,,, as I also am in as low of humidity as you can get....

that and the plain water thing are 2 good places to start and hopefully end....

The all-mix is too hot for babies. Start your plants in a small pot with a light mix like Promix or something. Once they are around three weeks old transplant them into larger pots filled with all-mix and you should be set.

Please don't count out humidity. in veg it should be around 80%, never below 65% but in flower should never be below 40%

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This is classic misinformation. 80% is too high regardless of the phase of growth (except fresh cuttings of course), you're just asking for trouble (eg. mold, mildew, etc.), 65% is probably ideal in veg but you can veg anywhere from 30% to 70% RH, you just have to adjust your nute strength and watering schedule accordingly (I'm not hauling this out of my ass, this is based on personal experience). RH in flowering on the other hand should should be no more than 50%, preferably somewhere between 30% and 50%. It's better to err on the side of a low RH, rather than too high. Only when you get under 30% RH does it start to negatively affect plant health.

I flushed them yesterday. Hopefully they'll be alright now. Thank you all.

my plant is geeting worse,, let me know if you get urs under control,, I will keep following this thread....

Humidity can be a pain in the ass to balance out, too

time to buy a humidifier.....