DatDudeJT
Member
Alright guys I need some help with this, I have a few grows under my belt now so i'm not a total noob. I know the clawing and yellow tips screams nitrogen toxicity but I am growing in Pro-Mix HP, and have added no nutrients yet (maybe my problem?). More info on the grow:
Strain: Autoflower, got a few from FastBuds, Dinafem, and Sweet Seeds. I forgot to check exactly what strains each different plant are but the problem is on most of the plants so I don't think its strain related.
Light: 400w Hortilux Metal Halide. Running an 18/6 light schedule.
Temperature/Humidity: Lights on temps are around 75-80, and lights off anywhere from 60-70. It's late fall so sometimes a cold spell can bring the temps a little lower. I think it got down to 61 or so at the lowest point last week. Humidity was lower than I would've liked for the seedling/veg stage, it was staying in the 20-40% range.
Medium: Pro-Mix HP and they are in 3 gallon Plant Warrior Pots. I'm not sure if its considered a smart pot, but they are made for plenty of aeration.
Growth Stage: They are 3 week old autoflowers, so they are vegging and some are starting to show preflowers.
Water/Nutrient Schedule: I water when the pots feel light (every 4-7 days?) and have not fed them anything yet and Pro-Mix shouldn't have much if any nutrients at all. These have received only plain waterings (tap water sat out for 24+ hours to evaporate chlorine)
pH Levels: I water with a pH of 6.0-6.2, I have read so much conflicting information on where to pH with Pro-Mix. I've read to go down into the low 5's, I've read 5.8 is a sweet spot, but the most consensus (or so I think) answers I read were 6.0-6.3. I've also read that you don't have to pH your water with Pro-Mix because the added lime in the medium balances it. My run-off pH always comes out low, water pH going in was always 6.0-6.2 in but always came out around 5.3-5.5.
I am thinking this is something pH related or they are starting to get hungry (cotyledons and the 1 fingered set of leaves are starting to yellow) because Pro-Mix doesn't have nutrients for them. Could it be a salt buildup hard tap water and/or the pH solutions? Let me know what you guys think though. I can provide more specific information as needed! Thanks!
Strain: Autoflower, got a few from FastBuds, Dinafem, and Sweet Seeds. I forgot to check exactly what strains each different plant are but the problem is on most of the plants so I don't think its strain related.
Light: 400w Hortilux Metal Halide. Running an 18/6 light schedule.
Temperature/Humidity: Lights on temps are around 75-80, and lights off anywhere from 60-70. It's late fall so sometimes a cold spell can bring the temps a little lower. I think it got down to 61 or so at the lowest point last week. Humidity was lower than I would've liked for the seedling/veg stage, it was staying in the 20-40% range.
Medium: Pro-Mix HP and they are in 3 gallon Plant Warrior Pots. I'm not sure if its considered a smart pot, but they are made for plenty of aeration.
Growth Stage: They are 3 week old autoflowers, so they are vegging and some are starting to show preflowers.
Water/Nutrient Schedule: I water when the pots feel light (every 4-7 days?) and have not fed them anything yet and Pro-Mix shouldn't have much if any nutrients at all. These have received only plain waterings (tap water sat out for 24+ hours to evaporate chlorine)
pH Levels: I water with a pH of 6.0-6.2, I have read so much conflicting information on where to pH with Pro-Mix. I've read to go down into the low 5's, I've read 5.8 is a sweet spot, but the most consensus (or so I think) answers I read were 6.0-6.3. I've also read that you don't have to pH your water with Pro-Mix because the added lime in the medium balances it. My run-off pH always comes out low, water pH going in was always 6.0-6.2 in but always came out around 5.3-5.5.
I am thinking this is something pH related or they are starting to get hungry (cotyledons and the 1 fingered set of leaves are starting to yellow) because Pro-Mix doesn't have nutrients for them. Could it be a salt buildup hard tap water and/or the pH solutions? Let me know what you guys think though. I can provide more specific information as needed! Thanks!
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