Hi guys,
I've done my best to figure out what's going on with my plants on my own but I'm really struggling. I'd appreciate any help you can offer. I'm fairly new to growing and entirely new to the kind of grow that I'm doing now.
I have three plants that all seem to be showing the same symptoms to some degree. They have curling tips and edges on lower leaves that eventually go yellow then brown, yellowing in the margins, some wilting, etc. I can't work out if this is nute burn, or if it's a deficiency (maybe nitrogen or magnesium?). I'm leaning towards deficiency, but then I don't know if this is because I'm not feeding enough, a lockout or a PH issue. The latter seems entirely possible as I don't really trust my PH meters and my runoff has a significantly higher PH than what I'm putting in. I PH the water I'm feeding to around 5.5 - 6.5 as best as I can with the tools I have available - I'm growing in coco/perlite and I understand this is the best range. The runoff is measuring 7+.
I'm feeding them with the GH trio (micro, gro and bloom) and calmag using a schedule I found on From Seed To Stoned's youtube channel. Currently they're on 2ml calmag, 2.5ml micro & gro and 1ml bloom per gallon. I started out feeding every day once they hit one week after emerging from the medium (on a lower dose), but recently I dropped down to feeding every other day. I feed until I have around 20% runoff, which I remove, and I give them plain PH'd water every few feedings to try to break up any salt buildups.
The coco/perlite mix I'm using is premixed with a slow release booster (I didn't really factor this in until recently), so I'm wondering if that's an issue.
Here's a few pictures of what I'm dealing with.
I've done my best to figure out what's going on with my plants on my own but I'm really struggling. I'd appreciate any help you can offer. I'm fairly new to growing and entirely new to the kind of grow that I'm doing now.
I have three plants that all seem to be showing the same symptoms to some degree. They have curling tips and edges on lower leaves that eventually go yellow then brown, yellowing in the margins, some wilting, etc. I can't work out if this is nute burn, or if it's a deficiency (maybe nitrogen or magnesium?). I'm leaning towards deficiency, but then I don't know if this is because I'm not feeding enough, a lockout or a PH issue. The latter seems entirely possible as I don't really trust my PH meters and my runoff has a significantly higher PH than what I'm putting in. I PH the water I'm feeding to around 5.5 - 6.5 as best as I can with the tools I have available - I'm growing in coco/perlite and I understand this is the best range. The runoff is measuring 7+.
I'm feeding them with the GH trio (micro, gro and bloom) and calmag using a schedule I found on From Seed To Stoned's youtube channel. Currently they're on 2ml calmag, 2.5ml micro & gro and 1ml bloom per gallon. I started out feeding every day once they hit one week after emerging from the medium (on a lower dose), but recently I dropped down to feeding every other day. I feed until I have around 20% runoff, which I remove, and I give them plain PH'd water every few feedings to try to break up any salt buildups.
The coco/perlite mix I'm using is premixed with a slow release booster (I didn't really factor this in until recently), so I'm wondering if that's an issue.
Here's a few pictures of what I'm dealing with.