I want to start a DWC but not really sure on some stuff so I want to ask for opinions. Grow tent I will use a 40x40x100cm, as bucket will be using a 5 litre bucket for starter and maybe change to a bigger bucket if needed later on (Most probably yes), lighting I will use 450w viparspectra led (has both veg and bloom options) and as nutrients I will be using general hydroponic gro bloom and micro. I got a tds meter today and checked the tap water and it was reading 780ppm, I was a lot of posts about what ppm should be but everyone was stating differently so want to ask here for a definitive answer and one last thing is how should I mix the nutes and when should I change the total water?
So 5 questions -
Is 5 litre enough to start?
What is the best ppm I should use for seedlings and later stage of growth
Whats the best way to get the ppm down without RO?
How should I mix the nutes from seedling, week 1, week 2 etc.
When should I change the total water nutrients mixture inside the bucket?