Hi everyone,
I'm about to receive some Mexican pinguiculas, and I am planning to put some pure sand on top of the mix as surfacing.
The aim is to avoid algae development.
So, the question is: which sand? Calcareous (same as I'll put in my mix), or the usual carnivorous plants one (quartz)?
Did anyone compare these 2 side-by-side, to have an idea of what is best? I noticed a lot of moss development in the pot where I have my Nepenthes campanulata with calcareous gravel surfacing.