I have 2 thick amazon swords that I planted a bit too close together, a thick java fern and a bunch of vallisneria that has knitted over the surface. I have two flattish pieces of wood leaning against stones making caves, the larger of the two has in itsel plenty of nooks and crannies and has the fern tied to it. I also have a larger piece of wood that in itself it has a few caves and cracks.
Enough?
I hope I see SOME baby loaches, but I have small rasboras and more importantly 5 dwarf gouramis. Hidey holes could be enough though...
I guess I'll just have to wait and see.