growth in dilute (1:10) medium has been found to offer better biofilm formation for many microbes

@Phil Geis, thank you. Do you know which is best for biofilm formation, YNB with or without amino acids?

Sueden de Souza YNB medium with amino acids supplemented with 100 mM glucose is usually used for C. albicans biofilm formation. However, studies in C. albicans showed that optimum biofilm formation could be achieved with RPMI 1640 media (better than YNB). You can use the same for your experiments.

Sueden - I'd default to a dilute medium with glucose. generally biofilm poduction is not an enriched phenomenon - it's more a hard time phenomenon. but I would search the literature.