Okay! I understand
Would you know an estimate of what 19 litres of soil would be equivalent too in soil? Mainly looking at what I can find in my tent.
Hmmm I’m guessing you meant 19 liters of soil to hydro, but I’d start off by saying you should run the size of the pot dependent on how big you want to grow the plant, that should come from the size of your tent and also what you’d be comfortable handling(bigger plants are obviously gonna be harder to work with aha). Plants grown hydro will bring faster and larger growth if done correctly, compared to a soil medium. In my experience, it would be a lot easier to work with and fill up the tent with more plants, so more pots, let’s say like 4, vs 2 plants filling up the space. So if you have like a 2x2 you should go with a bigger pot, if you have like a 5x5 maybe try smaller pots, but you can definitely still run the 5 gallons with no issues… you’ll just want to veg them out longer/bigger to maximize your space/yields
TO~ANSWER~YOUR~QUESTION
: If you’re currently running 19 liters of soil (5 gallons) you could honestly run 19 liter of hydro as well.
I’d suggest starting smaller though, a 3 gallon, so like 11-12 liters. Also I’m curious as to which hydroponic setup you are planning because a lot of variables can change your situation and outcomes, along with some pros/cons. Have a nice night! If you have anymore questions, I will get back to you