Week 2 veg, problems for Monroe?

You got the taco, Heat/Light stress. Either your temp/humidity is in a bad range( Search "VPD Chart" ) or you have to much light going to the plants. Install a LUX app on your phone and see what the LUX is at the top of your plants. your looking for between 45,000 and 55,000 in veg and 50,000-75,000 in flower. These numbers are approximate and will vary based on your phone and grow lights used. a PAR meter is ideal, but that costs a nice chunk of change. Good luck and Happy Growing

wow youre gonna have a hard time with that rh in flower. thats heat stress you see on monroe hid gives off far red and infrared which is basically what pizza resturants use to keep slices hot so that heat is your enemy at the moment. it seems like you can really benefit from an ac unit and very soon. what are the dimensions of your grow space? how many square feet? your light intensity seems fine on its own but that radiant heat from the hid is working against you. you might also wanna consider feeding less because with high heat and higher leaf temps its gonna drink more and thatll cause it to get more nutrients in and that may also pose an issue in the near future. i dont know if you do but i’d alternate between water and feed

See the leaves looking kind of canoe like. That is a sign of heat stress. Take GGS'S advice, keep that room cooler.

It seems like your other plants have the same issues, wilting leaves. Most likely its because vom temp and humidity. You wrote that you have problems with your AC. I would try to get the climate right, somewhere at 25C (75F - 80F) and closer to 50% - 60% humidity. The plants will grow under your conditions, but there may be some issues to come if you dont correct at some point (Slower growth, lower yield, mold). But for now they will definitely grow. Hard water per se usually (on a small scale grow) is not a big problem. Depends on where you live, but "hard water" just means it contains more calcium and magnesium, which is a good thing for the plants. You want to make sure that if you use tap water (which in my region is very hard, actually the "hardest" in my country - around 300ppm) it doesn*t contain possible harmful elements (suchs as chlorine). You can either call your water supplier and ask for the contents of the water, or you can just send a sample to a water testing lab. TL:DR If you live in a developed country, and you can safely drink your water you use to water your plants, its usually fine. If in doubt, leave the water in an open container for a day, to evaporate any possible chlorine (e.g. as in the US). In your diary it states you water with ph 6.5. If not already done, buy a good ph-pen to accuratly set your ph. in early veg, opt for a little lower ph, like 6.3. Later you can go up to 6.5.

Your not running that led and HID together right? For veg that is just way too much. A new mars TS1000 alone has nearly a 1200+ ppfd with the HID you got heat stress. Your tent does not need that much light for veg. Keep the led on lose the HID your gonna have to much heat. When you turn off your lights the temp will drop sooo much you are going to have serious stretching. Keep the HID/LED for pre flowering. And keep the HID say for the bottom and near a fan and the led on top set close around 30cm.. Or you can have both on top. But because you have 2 lights y not make even bud production if you can. And it'll be a lot easier to keep the HID cool by keeping a fan behind it. But make sure you have the light 30+ cm away. That's me. But the Mars TS1000 is more than enough to get good bud quality. Lower the heat. When vegging 18-25c is fine. You can go up to 28c max when in late flowering so you'll get away with both lights later but for now it's too hot. Good luck.