I think you're confused. Drain to waste hydro is done by either manual feeding from the top or an automatic drip system..........I feed manually from the top. No need to buy some 3 gallons pots............just use what you have.
They should look like this and ready to transplant around 2 weeks...
I wouldn't use anything but coco.........but that's just me. It doesn't take experience to successfully grow in coco.
Your canna substra vega is designed to be used in a drain to waste hydro set up.........so either would be fine. You will have to get canna substra Flores for...
You're treating coco like soil. Never, ever let coco dry.
You should be feeding at least once a day to substantial run off using a pH around 6.0 and never use plain water.
You can straighten out the plant if you do this.
Good luck.
Why two threads.........mods, please combine.
Canna nutes are good.
You would have gotten screwed if they had sold you a bunch of unnecessary additives.
That's nothing but bro science. Most auto growers transplant and train. Even Mephisto, who only sells autos, recommends starting in solo cups and transplanting. Transplanting shouldn't even slow the plant down if done properly.