If you water from bottom the roots will travel towards it
I know, but also heard that MJ doesn’t like to have wet feet and you should water at least until some runoff cames out to avoid salts accumulation. I just use trays to avoid dumping the tent, no water left to lower my high humidity and attiring insects.
I am also in the flushing side, so couldn’t use this method. That tray for a 25 gallon pot must be a swimming pool to receive 4 gallons of water , I agree it must be easier and comfortable to water that way …
No mj don’t like wet feet I found that out the hard way before I switched to Octopots the fabric bags were tricky I needed to figure out exactly how much water it took to let them dry out in 3 days to re water
One time I didn’t mix enough perlite in the soil and in compacted no air no root growth too wet all the time
That’s one way to ruin a grow
I’ve used them for 5 years before the switch and they worked just fine and produced great bud
Peace
Yeah the aeration is clutch on the bottom watering. I run about 1/3 aeration (perlite) in my pots. Some of them are more because of the biochar and lava. You cannot run soil that is like concrete. This is why I shy away from rock dust. If you put to much in you get concrete. This makes over watering easy. My organic pots are constantly moist.
this was my motive to move away from the felt pots in a small cabinet. In a large room probably not an issue.