Leafly.com has a good series that's easy to follow and for beginners. You can find it on YouTube:
Also, I highly recommend this book:
Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible https://www.amazon.com/dp/187882323X/ref=cm_sw_r_cp_apa_i_t86bDb0FZP82S
Very detailed but full of photos and graphs. An amazing read for beginners and experts.
Also, follow this guy:
He has some amazing and detailed videos on his grows.
Ed is good, and that is a good addition to your collection.
Another good one is Marijuana Horticulture: The Indoor/Outdoor Medical Grower's Bible by Jorge Cervantes. He provides some different views on things than Ed, and also has a DVD series where he shows himself doing everything.
A $210 pH meter strikes me as an extravagance for this level of grow. You can use pH strips or better off, use a small standard soil pH tester.
The 4 inch carbon filter will work, but it's going to need an inline fan and some ducting hose.
Personally, I'd just get a small grow tent that fits the dimensions of your closet, and scrap the mylar and poly film. Then you can duct the fan and filter directly into your tent.
The tent only needs to be about 3 or 4 feet tall. You can place it on a table or stand if you want. Then you can sit in a chair when you tend your plants.
Some sort of adjustable rope system to hang the lamps.
I've grown more than a dozen crops indoors, and I've never worried about adding CO2 to the grow space. I'm aware of the benefits, but this might be more of an advanced consideration. If you're looking to economize, this would be one thing I think you could definitely cut for at least the first few grows.
One thing that could benefit you might be Marijuana Horticulture by Jorge Cervantes. He's been updating and revising this book for 35 years. So it's pretty comprehensive, and it can take you from first grow all the way up to how to grow top shelf bud. It will tell you exactly what soil and nutrients you need, which can save you a lot of money versus overpriced fancy boutique nutrients and designer potting soils. And it can help you troubleshoot the inevitable problems when they occur.
The best single thing you can invest in is Marijuana Horticulture by Jorge Cervantes. He's been revising this book for more than 35 years, through the entire change in cannabis. So it's very comprehensive. It can take you from how to set up your first grow all the way up to how to grow top shelf bud. And it will help troubleshoot problems when they come up. The ebook is $10; put that on your phone and you'll have the reference for life.
Read Jorge Cervante's book.
Don't underestimate just how much the plants stink. You get used to it, so if smell is an issue invest in a carbon filter.
Less is more, don't nurture your plants TOO much, or you'll kill them.
The best single investment is probably going to be Jorge Cervantes' Marijuana Horticulture. Cervantes is a counterculture legend, and has been revising and updating this book for 35 years, so it's comprehensive. It can take you from what you need to get started, all the way up to how to grow top shelf bud. And it will help you troubleshoot problems when they arise.
I grow 2 plants at a time in a small grow tent using a single Marshydro 300 lamp. I also use an inline carbon filter with a vent fan. I use just basic potting soil and Miracle-Gro fertilizer. And I've got a pH tester, which costs about $15. Other than that, I just make do with wire and string and duct tape, so other than electricity, there aren't any other big costs. My yield is a bit over 2 oz cured bud per plant, so 4 oz per crop, plus several grams of bubble hash. I can grow 3 crops per year, but 2 crops (4 plants, 8 oz) is enough for me.
Marijuana Horticulture by Jorge Cervantes.
Also new but am reading this and it has a ton of good info for indoor and outdoor grows.One of the kind people at organics okc directed me to it and so far i have not been overwhelmed by the info Marijuana Horticulture Medical Growers bible by jorge cervantes