'Lung infections from mouldy pot' is a wives' tale. While mouldy buds are unpleasant to smoke from beginning to end, not many mould spores are going to survive being hit with a Bic. I also don't think powdery mildew spores would survive long in a lung, even if
somehow you managed to smoke the stuff without setting it alight.
Yeah, why? If you could put the ballast outside the room, that would be heat you didn't have to depend on the exhaust blower to remove.
2"? is that right? What's a 2" fan supposed to boost?
Tell me about this light, does it have an inlet duct flange and a glass sheet over the lamp tube? Hope so. It'd be a lot better for temp control if it acted like a cooltube.
Ventilation should be organised like this:
Circ fans should be ordinary 40cm (15-16") oscillating units.
Use a 40cm circ fan here too, if you can.
Can you return
all this stuff? It's a bunch of organics and will be a major pain in the ass because you can't use H2O2 with them.
Check what poor platypusman has recently been through with them. With organics, you are relying on competing microbial activity to control pathogens- and it doesn't always work... and it's kinda hard to tell when it is.
'Sweet' is a sugar sauce and should not be used in
any hydro op.
I see 3 bloom additives in your list. 'More' is not 'better' in growing plants. If you use any bloom additive at all, use ONE- and it should contain P & K and nothing else.
'Organic' doesn't mean 'better' or even 'good.' Organic molecules are all constructed from inorganic molecules. Organic fertilisers have to break down into inorganic elements before the plant can use them.
Organic growing is a good technique for soil but not hydroponics. With inorganic nutes & H2O2, you will have a successful grow the first time and the op will be much easier to maintain as you're only growing ONE organism- cannabis plants.
Replace this list of stuff with a good quality 2-part standard hydroponic nutrient from a well known maker like AN, GH, Canna, a bloom additive like Canna's PK-13-14 (used for 1 week in wk 6 of flowering ONLY) and H2O2 50% grade, to be used at 1ml/l of nutes every 3-4 days.
Combo meters are not the best choice. The pH electrode only will last 2 years and when it needs replacement, if it is not user replaceable, you will replace the entire meter or send the unit in for service. You already have a pH meter, but you need an EC/TDS meter for nutes before you can start growing. Hanna pen meters are not renowned for reliability, but their more expensive ones can last a while. The most reliable TDS meter I've ever seen is the Bluelab Truncheon. Avoid Chinese copies as found on Ebay.
I think your ventilation system needs a rethink. I can't see less than a 150mm main exhaust blower being needed in any case. If you're going to use a carbon filter, you'll need a centrifugal exhaust blower to push air into it. Axial fans won't work well into an obstructive load like a carbon filter You won't get anywhere near an axial fan's CFM rating if it is pushing air into a filter.
Doesn't matter. Warm white fluoros grow plants just as slowly as cool whites. vegging with fluoros is fine as long as you don't need a bunch of cuttings every 2 weeks.