My first price of advice is to never buy anything mars hydro ever again, you will thank yourself as you gain more knowledge and experience consider them overpriced for the quality they are.
Coco? The brand of coco really shouldn’t matter, canna coco bricks are the best they say but honestly get whatever you can get cheap. Find out if it’s buffered or not (this is key) most coco these days is buffered but some ffor reptiles and stuff isn’t. So you want washed and buggered coco.
Jacks is a 3 part nutrients
Part A ( proprietary blend)
Part B (calcium nitrate very common fertilizer can be bought in bulk most nurserys or agricultural places or local hydro stores online in your area)
Part C if you will even though they don’t ca it that is Epson salts, yup The normal bath stuff with no flavours or smells. It’s chemical name is magnesium sulfate and you can buy it anywhere. A pharmacy will have high grade stuff for first aid and most places that have calcium nitrate will have mag sulfate.
Now you don’t need these couple addatives but…
Silica is an essential building block, it makes plants strong because it builds cell walls and that leads to thicker buds as well. Any liquid will do from a hydro store but I would recommend the jacks nutrients of silica called Agsil16H. It’s a high grade powerered product for agriculture use and is approved by regulator bodies unlike most silica products. Also it’s cheaper then all the other options.
Microbes make a huge difference in root development and nutrient uptake, expensive but totally worth it. To date the best we have seen on the forums is fishhead farms fishshit. It’s worth every penny. Buy the 100$ bottle it will last you a while.
Now a bonus booster for Jack’s is a product called mkp its not needed but if you want to maximize results and avoid a million other products I would suggest getting a 1lb bag of that at a hydro nutrient store and then you basically have everything you need nutrient wise aside from PH up and PH down,
Advanced nutrients makes the best PH buffers they are strong and reasonable priced, a bottle will last a long time get one of each.
Finally if you want to go 110% get an amino acid product. What one? I couldn’t tell you been looking at some and haven’t pulled the trigger been blowing my money on other stuff lol. Aminos do help though the science is there to back it up.
Ph pen I would suggest a aperha PH20 KIT
4x4 flowering tent?
In order of my preference
#1 Kingbright, either duel 320w 301h’s with 660nm reds or a 4x4 bar kit that will cover your whole canopy evenly.
#2 duel 320xl hlg Rspec’s
#3 something from chilLED made for 4x4 flowering they make good stuff to.
#4 spider farmer stuff, Spider Farmer SE5000
Bang for your buck Kingbright blows it all out of the water, it’s made in China but it’s from a reliable and quality manufacturer.
If you want USA made and built then #2 or #3 if you want cheap, foreign made but has a US distributor then #4 is your option.