Download “endoscope” in the app store
Then plug it into your phone, make sure the lense cap is off lol.
Your main section in the 2in1 vivosun is a 4x4 that’s lots of space but unfortunately it’s a shorter tent with only 5ft so your going to want to do some Low stress training, say half the plants and FIM’ing the other half. (minor LST for autos, I would suggest a scrog if your growing photos but your not)
Who’s quote is that lol I seen that said earlier…
Anyways 4 plants in a 4x4 is about the right to start with, then you can desice if you want lots of little plants or less huge plants (if your growing autos you don’t have this type of control though because the veg period is set to 30 days max)
If you want a continuous grow you could grow 2 now and wait 40 days then start another 2 but to be honest I would just start all 4 now and then worry about cycling new ones later.
There is a possibility you kill a plant or something and then you can drop a seed or two to replace it.
Also it will depend on how long the flowering is for each auto, if you drop 2 fast and 2 slow flowering strains that will cylce your grow.
Mark the so called finish date on the Callander (according to the strain and when the seed popped) then keep that in mind and look at tricombs.
Depending on that along with what type of high you want you can drop new seeds in your little side compartment so they can start there until you harvest and make room in your main tent.
I bought the 3x3 version from a different company but very similar and am growing 2 plants in it currently