I'm debating between cories and platies or none at all with my planned sorority. Seems the platies will overstock my tank and not allow me to get as many girls; same with the cories. I have a 20g as well. Thoughts?
Well it really is up to you and the type/amount of filtration and water changes you want to do. But Live plants are awesome at keeping the bio load down.
I personally want to have a mixed interesting tank,with female bettas, but i also have a soft spot for live bearers.
I also like having bottom dwellers.
I say if you want more girls then go for it, leave the platies out.
Lavender and white female Ct Bruiser, blue ct female Boy
red vt female, Dumbo ear Butterfly male Cloud
RIP ~ Cheeto, Pineapple, Shela, Double tail, Big blue