Would I learn much by propagating my own plants?

[Hebily]

Fill it if your doing co2, if not enough plants algae could take hold.

You could say that the other way around, too. If you have too many plants and not enough co2, algae could take hold.

 

[Nue]

For me, new plants always seem to almost die, then new growth comes out when they have adjusted. So i always start out small, because i usually end up small after they all adjust anyways. Besides its more rewarding in the long run.