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I was thinking it was a vertical nft/ dwc hybridAgreed. This is like some kind of weird attempt at a hybrid DWC/RDWC setup. Ditch the top feed if you're going to do DWC. Also recommend a single plant per site. Too many horror stories around about what happens with two plants in one site.
What are enzymes and why do I need them?
ive heard things about algae on the lid?
How does feeding work? I feed to 1000 ppm (how many actually?) And then monitor it until it drops to 500 or whatever. Then replenish it back to 1000? How do I know how much to put?
Do I ever need to change the water?
What are optimal water temps and any other things I should know. Any surprises I may run into?
Is there such thing as too much air or water?
+1 on all of this.Enzymes helps organic matter break down faster. This is beneficial for removing dead root matter and also encourages healthier roots, which leads to better uptake of nutrients.
Feeding depends on stage of growth. Depending on your water source, starting at ~500 ppm is ideal. Slowly increase this by how the plants respond. You monitor for increase in EC (plants drank water) and pH (affected by various factors). You want to top off as water levels go down, and @Aqua Man has a great thread on how to do top ups effectively.
Reservoir change outs are a contested topic. Some growers run all the way through with never changing out, others do it weekly.
68F - 75F provide optimum dissolved oxygen levels. Higher than 75F contributes to the growth of pythium and other pathogens. Lower than 68F can slow down plant growth. It's a balancing act of maximum dissolved oxygen to volume of water for optimum plant growth and reduced pathogen risk.
There is no such thing as too much water or air. Nutrient solution will only hold so much dissolved oxygen.
Wow thanks for that explanation. That’s awesome. Answers a lot.
are enzymes required? How do you know how much and when to use tbem?
68-75f wow that’s a very tight range. Especially in Canadian terms. 20-24c. Not much room for error there.
what are you guys using to monitor ec (also ppm right?) and ph? I feel like my $18 amazon specials won’t cut it.
so basically. The plant sits with its roots dangling in a bucket of water with an air stone. That’s it?
you monitor the water and check that it remains at a certain ppm every 12 or 24 hours and that’s it? How do I know, of my 11 bottles, what to add?
the water doesn’t really need to be recirculating or drained or any of that fancy stuff does it? It just sits and bubbles?. I’d like to start with one big plant in my 4x4 and go from there.
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