As my BNs get bigger they're starting to destroy my crypts and the staurgyne repens. Does anyone know of small BN-proof foreground plants (apart from Anubias barteri) which I can replace them with?
Worth a try is sagittaria subulata (carpeting type plant) my Bn takes no notice of it and it seems to stand up to knocks and such. Apparently nigh on indestructable so long as the water is somewhere near.