So the inda gro is up and running. Raised my temps a little but that is not a bad thing since I was considering a small heater if they didnt get to 70 soon. Now it sits around 80. My question is how exactly high should I have it? cuz the bulb does through off a lil heat and I have it at 26" from the container, 20ish from the plants tops so is that too close or too far? I had it a lil closer but saw a lil upcurl in my leaves of the white widow and the NYPD was starting to as well.
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Also side note, wtf is that yellow dot? Mg deficiency? I have been giving distilled water till now, just started giving them tap just never had time to let the water sit out as stupid as that sounds lol.
you can tell a great deal about how a plant is liking it's light by how it holds it's leaves. but it's sorta a complex set of variables at play, that also involves temperature and RH.
when the light intensity and the
Vapor Pressure Deficit are both agreeable, the plant will try to keep it's leaves perpendicular to the light, so that maximum absorption/photosynthesis can occur. for the sake of simplicity, i will assume that we are working in a proper VPD. if the light is more intense than the plant would like, the plant will try to shift the angle of the leaf surface from perpendicular (raise them up like their worshiping the light, or lower them in the opposite manner) to reduce light absorption and therefore photosynthesis.
now... other things can impact the leaf posture too... early Mg def will make them go "Praise Jah" with the leaves, for example; and bad rhizosphere pH. thing is that VPD issues will easily trick the uninformed gardener into assuming that they are looking at Mg or Ca def issues that can be solved by adding more, when the issue is the air is too dry or too wet...
in regard to the little one in your pic, see the larger leaves there? see how at some of the serrated edges, they curl up ever so slightly? almost like they got pressed out by a cookie cutter from underneath... it's been my experience that the plant is there showing the onset of transpiration related stress.
in a nutshell, i think we are looking at VPD stress (same for that little yellow dot). what's your light on/off temps and RH?
oh, by the way...
a friend donated me some seeds the other day. i filled a shot glass of water from the tap for each seed, and plop! in they went... one sprouted a tail by the next day!
in short, i think your tap water may be fine from the start; just check your ppm and pH... i used to run only distilled water until i checked my tap and realized how clean Portland water really is...