What size organic soil SIP do you do

[Bio boy]

Currently I do 21gal with 2 plants but seen some saying 5gal? Then on organic they says 100gal for living soil if you don’t wanna add food in flower ?

So do I make my sip 21gal or do I drop down to 10 gal ?


I veg my sativas for 5weeks and flip I’m hoping I can drop to 10 without loosing yield ?

 

[Douglas.Curtis]

You can lose yield with the wrong choice... good question!

 

[St. Phatty]

I did sub irrigated planting once in a freshwater lagoon in san diego.

It was far enough upstream so it didn't get salt water.

The reeds helped keep it stealth. Though I would guess my footprints in the mud may have detracted from the stealth.

Once I saw a Big Owl in the tree near my grow.

Got about 2 plants, 1 ounce from each plant.