Monitor your output tds for solids numbers starting now. Your soil will show depleted if you monitor the dissolved solids over time. Taking a single snapshot won’t work. Look at the plant; is it healthy and happy? If it ain’t broke don’t fix it lol.
I’m going to feed during veg with some ph balanced worm castings and I may use throughout the entire grow. Probably would still need additional P and K though in flower.
Can I do a slurry test? I have a TDS meter but never really messed with it. It is a cheaper one that came with a cheap PH meter ( I don’t use the ph meter because it was terrible lol)
Sure; a slurry test IIRC; ph 6.5 water mixed 50/50, let stand for 30 minutes and read the ph. Solids are taken in runoff. The last cup or so of runoff to see the state of your soil.
I just want to make sure this isn’t heat stress from lights…take a look at the pics. It looks as there may be a little curling on one leaf…or I may just be over thinking things…take a look please
So I took a PPM reading of my tap water and it reads 127, I check the run off and it was in the 900’s. Is it safe to assume when the nutrients are gone it will be much lower than 900?
Yes; that’s one of the reasons to take the tds to develop a histogram of your soil conditions. I sure wish my tap water was that low. Mine’s four times that high.
Yes, I think so. What is that top light that seems to be off? That looks to be a sufficient light for your one plant. Even LEDs can burn and bleach the leaves. I think if you just turn on that top light, you should be good. But let’s ask our resident lighting expert, @dbrn32.