OK. Thanks for all the replies. Kindprincess, I do not think it is spider mites. I have been checking them closely every day or two and see no evidence of them. I will continue to watch. Like I said, temps are peaking at 83f/26c, which I dont think is any problem. Splifted, I had and have again checked the plant abuse chart and the plant that closest resembles mine would be the magnesium deficient one in pic 16 I think. Stinky, thanks for your advice too. I knew the ph level of the soil was screwed up. So, lemme get this right. Flush with plain water (at what ph?), THEN water with ph7.5 (after they have dried again I assume)??. OR do I just flush with the high PH water?. I'm a bit confused on that one. Thanks again to everyone.
jpriest66 Reviewed by jpriest66 on . rust spots getting worse (pics) OK, hoping someone can help. These plants are 35 days old (day 28 of 12/12). I am using the Advanced Nutrients 2+ Bloom (medium feeding) program. I continually give them 2 feedings of nutrient (at 6.3ph) and 1 feeding of regular water (at 6.3ph). I foliar spray with Growth Excel just before the lights come on about 2-3 times a week (tho I dont PH the water I use for this foliar spray - should I?). They are growing in ProMix HP under a couple of 1000 w HPS's. Temps are between 17c/65f and Rating: 5