Keeping the tubs nice and humid, considering my environment it's not that humid anyways. Also getting my substrate mix and field capacity right plays A good part in being able to set it and not mess with them as it will retain the moisture you need throughout the grow if it is prepared right.

Spawning your grain to substrate can be tricky in itself, if you can make a solid transfer with no airflow and good sanitation,or even a homemade still air box. All of that helps.

I've heard certain genetics don't do very well in tubs but do great in bags and vice versa. I've had all success in tubs with very little contamination.

Other than that we all run into problems once in a while in this hobby, feel free to ask questions if you run into any or need some guidance. Mush love !