yellow leaf spots

This is my first indoor grow. I can rock it outside but I'm struggling inside. I've been feeding Neptune's Harvest fish at the recommended dose. I've started using a little seabird guano as well for the phosphorus. Organic soil mix of pearlite, store bag soil, and coir. The light is a "1000...

Hey guys/girls, My friend's girl is showing some weird yellowing. Can you give me an idea of what is going on? Wattering with BioBizz nutrients: 2ml FishMix, 1ml BioBloom, 2ml ActiVera and BioHeaven, 2ml TopMax, some drops of Calmag.

Hello all. This is my 1st post on here and it will be about my second grow. i have 2 gorilla glue autos in ffof/40% perlite, 3gal fabric pots, under electric sky 300 v2 in a 2x4 grow tent, indoors. Temp averages 80 with lights on. humidity was averaging 60% but since I discovered it could be...

First time posting. I learned everything I know from all of you here and the more i learn and apply the more I love watching my cannabis grow. It really is an incredible plant, such controversy and politics attached to it...and that's not its nature! So here is my set up. 3 42watt 6750k cfl 2...

I need help confirming for future instances, looks similar, but off. Mama seems to be showing signs of a Calcium deficiency based on information from http://www.growweedeasy.com/common-nutrient-problems. I already put 4TSP of Cal-Mag into a 5 gallon pot. I'll check on her daily to see if it...

This morning my grow room has started to stink like a cross between something rotting and shit! I have 4 plants in the last week of veg and 2 seedlings about 2 weeks old running two different systems but all showing the same symptoms. All started showing patchy yellow leaves starting from the...

Hello all! First grow here, gonna make this short and sweet. Have experience growing hydroponic vegetables, but first weed grow. Using a 250 watt mh for veg, in week 3. Started from clone from dispensary. Using fox farm ocean forest soil, went from solo cup to 1 gal to 3 gal(current and...

Hey whats up guys.. So im about 2 months into veg and 2 of my plants are showing signs of sone sort of deficiency. It starts about up mid way on the plant and begins with the leaf tip or from the leaf tip and goes inwards on from the leaf tip. Leaf tips or between leaves turn yellow then brown...

I have this type of spot on two places of the plant. Curious to what it is.. :0

Hello can somebody help with this iam not sure what it is mildew, leaf septoria ... Some pests..

Well I'm not sure what the problem is with my girls, this started just a couple of days ago and they're getting worse fast, other wise, doing very well. My girlies are 3 - Pure Power Plant from seed. 600W. in a 4'X4'X6' tent 50% humidity, (via an, in tent, cool humidifier.) 75 deg. F. (via...