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im just using a water PH tester to test the water from the tap and the water the drains from the bottom of the pot

k i think its my PH because my PH is 6.9 and after it goes through the soil it is 6.5 - how do i fix my ph can i buy PH down at a gardening store? also can i use PH down that u buy at a aquarium store that u use to change the ph of your fish tank???

yes my grow room has lots of ventilation should i check the ph of my water as it drains from the bottom of the pot? and what do i do if the ph is off?

its about a month and a half old and the nutes i use is 20-20-20

my water is 6.6-6.8 the temp of my grow room is 75-77. i use a 400W hps. and its about a foot away from the light

k.. what do you think it is??

Hey im having some problems with my leaves. Could any one look at my picture and tell me whats wrong with my plants!!

new pic of my plants leaves

k well this is not a over watering problem!?!?! iv tryed giveing them less water and they just dry up!! and now all the leave tips are curling up and are very dry??? what should i do??

So do you have any ideas on how to fix my problem the lower leaves of my plants are yellow and pretty much dead and the tips of others are dry and crispy? And one of my other plants lower leaves have just become really dry and crispy and disintegrate when I touch them!

ya ill put the flors light right above the plants next time!! The tem is 75 (but before I moved the grow room the temp did get up to 90 so idono how long it take them to recover from that or did that damage them for life?) its red from the shity camera and idono it’s a HPS light?? I will go get...

have 5 plants but only 3 are female and yes still in veg. ya k good to know because I had them under CFL’s but put them under the HPS after like 2-3 weeks. So you only think its over watering? Because I was looking on the internet and it said that it could be a Sulfate deficiency ??

its about 5-6 weeks old and im using a 400W HPS

heres the picture

The lower sets of leaves have started to turn yellow, some of the tips of leaves have curled up and are crispy and brown. also the stems of the leaves are turning purple. What is this and how do I fix it. I have only given then a small amount of nutrients and my PH is good.

The tips of my leaves are starting to point up and turn brow/yellow what is this and what should I do?

what dues it mean when the tips of your leaves start to point up and become brown/yellow and crispy?

On the topic of leaves my leaves have like little tinny kida yellowish/white scratch marks on them? What is this?

was at home depot last night they dont have them - but ya ill try ebay or smothing

Iv made a small grow box (2’L 3’W 4’H) just wondering how many watts, k , and lumens CFL lights I should have in there to grow a good crop?