3weeks into vegetative, please help!

So I know I'm not doing everything right and money is a serious issue for me. But hear me out because I need help.

As you can see its a PC grow box with 1 exhaust fan and 2 CFLs 40w 6400k each. I water my plants with tap water every 2 days and they are under 24/24 lighting.
Some leaves seems to be dying and I don't really know where it comes from. I have used soil that wrote 30/20/30 on the bag with sand fertilizers etc.

Please help

What brand of soil?

Hot warm does it get?

And it's never good to plant them all in one pot.

Transplant them into separate pots.

BYO is right on with them needing their space, otherwise they'll fight each other for it because cannabis is naturally a weed and they'll just end up stunting each other. Plus, if you did wish to transplant it wasn't good planning to put them all in the same container because the roots will intermingle and it'll make it hard to separate them when that time comes.

Regardless, even if you weren't to transplant them the medium is still way too small to get an adequate harvest once you start flowering them. If you want a plant to grow big buds, large branches, and thrive, it has to have an adequate root space in order to account for that growth.

Furthermore, what is your soil mix? It doesn't look near airy enough.

Ya know, this thread has been posted somewere else and been replied too. or is it da ja vu? ??

Ok guys so I will transplant them into separate containers. So this is the reason why my leaves like drying out?
I used a soil that I bought in the supermarket it has written on the package:
Compost
Fertilizers, sand, compost, soil 30/20/30
I don't know how warm it gets cause I have nothing to measure the temperature or humidity inside the pc grow box. But I heard that CFL doesn't burn the leaves. However the temperature might.

I guess I have to make a lot of changes if I want them to grow healthy

Ya know, this thread has been posted somewere else and been replied too. or is it da ja vu? ??

Yes, I posted before but I was told that it was normal cause it was just 2 leaves below but now at least 6 leaves are dying on each plant.

do not use tap water - that is one of the quickest ways to kill your plants. Invest in a reverse osmosis kit, you can find them for around $100 and without one you will never get a decent yield as your tap water will keep throwing your PH out so badly that it will not really be worth continuing with the grow.

do not use tap water - that is one of the quickest ways to kill your plants. Invest in a reverse osmosis kit, you can find them for around $100 and without one you will never get a decent yield as your tap water will keep throwing your PH out so badly that it will not really be worth continuing with the grow.

That would depend entirely on your tap water, properly PH'd tap water can do fine in a non hydro setup. My tap water is consistantly 7.4, my RO water is 6.8, I can PH either one (and do) with no problems.

Hey bro, Thats diffinitely your water not your light. Your tops look fine and those dying bottom brances are 99% of the time a sign of bad watering. I would buy a gallon of reverse osmosis water from the store and ph it. Feed them only that, no nutes, for 2 weeks. they should rebound nicely. Something is in your water.

dont water a little everyday but water until u get runoff then it may take 3-4 days to need it again. i use phd tap water with no problem

Ok guys so I will transplant them into separate containers. So this is the reason why my leaves like drying out?
I used a soil that I bought in the supermarket it has written on the package:
Compost
Fertilizers, sand, compost, soil 30/20/30
I don't know how warm it gets cause I have nothing to measure the temperature or humidity inside the pc grow box. But I heard that CFL doesn't burn the leaves. However the temperature might.

I guess I have to make a lot of changes if I want them to grow healthy

Don't tell me what is in your soil, tell me the brand name of your soil so I can look up its ingredients and possibly find an analysis on Google.

Personally, I wouldn't use any soil with sand in it as it doesn't promote a good airy soil mix/good drainage.

That would depend entirely on your tap water, properly PH'd tap water can do fine in a non hydro setup. My tap water is consistantly 7.4, my RO water is 6.8, I can PH either one (and do) with no problems.

PH might be an issue in this instance, but not as much as the possibility that the water source that your water is coming from could be possibly treated with evaporatable chlorine or even unevaporatable chloramine.

Edited by DriftingApart, 05 July 2012 - 06:33 PM.

i think your soil is too hot at the minute , i think it will you will be ok if you just give plain ph`d 6.2 water that has been stood for a day . as for seperating those plants your going to have trouble with the roots , they will be all tangled together , which will stress your plants out , but it has to be done , eh . by the way ,its got nowt to do with ur water . your soil is 30,20,30 , that is too rich for seedlings , go buy cheep ph testing kit , test your tap water then test ur run off .

Hey guys,
Sorry for the late reply but I was having some serious problem with the internet. Anyway I got to a store to look out for the reverse osmosis thingy and it turned out to be 700$ in my fucking country and this is way to much for me. I can't even but 3 pots to transplant my plants, but I managed to separate it for now as you will see in the pics. Now water, I have been to a nearby river and got some water Im not using tap water anymore and Ive also replace the 40w CFl by 11w CFL. I know its not enough but have a look at the pics. I have only one exhaust on the pc grow box I am planning to have an intake as well then change the CFL to a higher wattage.
Well the are loking healthy again and a huge thanks to you guys you saved my weed!!! let me know what you guys think you will spot the differences between the pics.
Thanks a lot for you help guys.

do not use tap water - that is one of the quickest ways to kill your plants. Invest in a reverse osmosis kit, you can find them for around $100 and without one you will never get a decent yield as your tap water will keep throwing your PH out so badly that it will not really be worth continuing with the grow.

Ive used tap water for years. Diffirent houses. Same area. ZERO PROBLEMS. No yeild issues. Guess im just lucky

Ive used tap water for years. Diffirent houses. Same area. ZERO PROBLEMS. No yeild issues. Guess im just lucky

There are many areas of the country where tap water is fine, but the vast majority will have very high levels of dissolved salts and minerals that are no good for your little girls.

How much is distilled water at your grocery store? Around here its only 88 cents a gallon so I pick up a couple gallons each week. Also make sure you aren't overwatering, go by the weight of the pot, there is big difference between when the pot is just watered and when it is dry.