Yellow leaves

Nute burn, or lights are too close??? I am using 250 hps 10" away from plant day 20. Thanks!!!! P.S. I think it is from the light, but I just want to be sure, because I have been feeding her in small amounts. My cycle is feed, water, feed, water, rn about every (3 to 4) days. 20/4 Light cycle, with temps between (74 to 79).

looks like the beginning of nute burn. are the tips crispy or brown, hard to tell? and whats the ph of your water. also looks like your overwatering, the veins are swelled on the leaves.

ph is 6.3 to 6.5 There is no way I am over watering them. I water them on every 5th day! The soil is dry 2 inches down and they feel light. I always water until I see VERY little runoff. They are in 3 gallon pots.

are the tips crispy or brown at all? just a observation by looking at the leaves. swelled up=over watering. overwatering=growth stunt and root rot/stem rot which doesnt look present yet. what strain is it? keeping the temp a max of 75 will work better too. I like running my temp from 70 to 75 while not using co2 (80 to 85 while using co2) by using a simple thermostat that runs all the fans when it gets to 75 and cools it down 5 degrees. Also what is your night time temp?

Well its not the light..and if it was burn surely the tips would go first..I'll say deficiency or maybe your not watering properly and roots are getting hurt...

They are not crispy or brown. The strain is PKA. I do a 20/4 light cycle, and when the light is off its between (70 to 75). Question, when I do water, should I not be watering around the roots? Should I just water the edge of the 3 gallon pot??? So the roots can stretch to find the water???? Thanks!!! P.S. I am using FFOF, and they are on day 20. I have only used nutes one time, and that was grow big 1/2 strength of recommended dosage.

Scroga, and mmj92 what is your guy's definition of properly watering???? I water with ph 6.3 to 6.5 spring water, use about 20oz of water each time I water, just enough to see a little runoff. when I stick my finger 2" in the soil it is dry. On average I water every 3 to 4 days. THANKS!!!!!

i have to say calcium/magnesium deffientcy.treat with cal mag.bottom leaves show that problem. general organics sell it . hope this helps.old hippy here,been around the block a few times lol, peace out n good luck

^^I agree with ShotgunWally. CalMag on ebay is also cheap.

Thanks Guys!!!! will give er a SHOT!!! How much you think I should use? My PKA is really nute sensitive. Holla Back!!

I just bought some CAl/mag how much should i USe ?????????

Help a cracker out! LOL kiss-ass