Yeast type would be ideal, however if you can afford it, I always recommend getting pressurised, as its a million times easier to control and regulate.
Im using the Nutrafin kit in my tank with a glass diffuser (ladder just over powers the tank and im begining to think the glass diffusers are better anyway).
I do intend to grow glosso.
However id be wary of growing it unless you have upgraded the lights on the tank