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Yeah, I might turn them down to 400w (1200 total).. pull temps down to 23 lights on 19-20 off and see how I get on.. reckon that’s a good starting point?

what causes revegging? I’ve got my A&B nutes low so it won’t be too much nitrogen I wouldn’t think..

Yip, they have dimmable ballasts, 600-200w range

White Widow, the only thing I’ll note is more to the point I’m asking is. I had issues in the past with foxtailing and I’m wondering if it’s light intensity, I’m sure if it was, I’d have signs of bleaching or damage to leaves and I didn’t.. only thing I can think of is high temperatures on a...

Have an A/C unit.. when I’ve done it before I can manage temps of 25-26c lights on.. just wondering if it’s too much light. 4x400watt hps be better suited?

I’m growing in a 2x2x2 (metre) tent. Have 14 whit widow plants I’ll be growing, will 3x 600w hps grow lights be too much in this?

Thanks ! This all helps heaps. My RH is terribly low currently so all makes sense for those wee guys. Will let them dry out and increase RH in that tent.

Easy mate. Thanks heaps, noted

Not usually, I never have really.. haven’t had this issue before but I usually run a different strain so could be the issue of build up.. wouldn’t that be reading a high EC slurry even though? I did go down to the roots with it.. I can test run off because I’ve just flushed them. Should I let...

Yeah I get ya. I did give it a decent scoop here I saw roots.. they seem healthy while I was there, plenty of them. I have raised light over the past day or so to about 50cm

Sorry that was my run off.. 1.5 in. Slurry tested each, worst was 0.5 then 0.6 0.7 etc to about 1.0EC

This is what we are looking at..

18/6.. just did slurry test and are all coming out between 0.5-1.0 average 0.8EC

0.5 was the worst 1.0 the best.. average of 0.8 from the 6.. so under fed.. everyone saying that it’s over feeding? Haha. What do you think has caused the browning of blade edges and tips? Some look really healthy and overs aren’t and some are turning worse

tents are on top of 50mm poly then 8mm ply..shouldn’t be a temp issue. Especially because it’s summer here too

Yeah, just flushed.. run off is average of 0.8.. 1.5-1.6 in.. think they are over watered.. would that cause the browning of the blade edges and tips though??

Personally I don’t test run off.. never had but this is the first of this issue I’ve had so early on. I did a slurry test and they all came out way under EC. Worst was 0.5 and best was 1.0 average like 0.8.. so it isn’t an over feeding issue that I didn’t think it would be.. roots look healthy..

EC too high? Will have to test later with lights on

EC/PPM is 1.6 currently just looked and TDS 750 or PPM 1090 depending on what you use. Feed in at 5.8-5.9

Yeah, seems strange they have started to show signs now.. I’ve been feeding them with this for a few weeks now.. even the tiny new seedling you see in the photo are getting this dosage without issues..