HELP! problems with 1 wk old babies!

[surfrat595]

true but i think the others are right when they say it is due to wrong ph level. Im going to test my runoff next time i water and let you guys know what it is

surfrat595 Reviewed by surfrat595 on 10-23-2008. HELP! problems with 1 wk old babies! I recently got 6 kush clones from a clinic. They all were growing well but now they have started to get yellow on the edges. The center of the leaves is still mostly green and the veins are green. They growth doesnt seem to be stunted but i am worried because the yellowing is moving up the plant. I have a 400 watt hps and i use general hydroponics nutes. I think it might be a mg or zinc problem but it doesnt look to me like nute burn. please help! Rating: 5

[Revanche21]

true but i think the others are right when they say it is due to wrong ph level. Im going to test my runoff next time i water and let you guys know what it is

pH problems causes nutrient deficiencies

[surfrat595]

ok so i watered the babies with ph 6.5-6.8 ish (using liquid test kit) And i collected the runoff to measure that. The runoff was really dark almost black so i let is sit out thinking it was floating particles. An hour later it was still black so i took a reading and though it was hard to tell im pretty sure it was reading too high somewhere in the 7s.

[Revanche21]

yea I have a similar problem when I use liquid karma in my DWC, it coats my pH test strips with a layer of black o__o

[surfrat595]

so i finally got a clean ph reading and the runoff was wayyyyyy to high on the chart looks like 7.5-8.0. The water i put in was ph 6.5 so im going to lower it to 6.0 and then see what the runoff is then. Is 6.0 to low to start or should it be good? The plants are growing but there isnt any fan leaves except for at the top. Will the lower ph make the plants start to mature better. Im going on my 4th week in veg and they look like they are 2 weeks old.