Thank you! :)
Yeah he's definitely ready, as soon as I put her in he started on his nest and has been splitting his time ever since between making his nest perfect and flaring and showing off to her! Very entertaining to watch, this is the first time I've attempted to breed my bettas and I'm very impressed!
On a side note, I have an infusoria culture (I hope) but is there anything else I can buy from the pet shop which my fry will eat straight away once they are free swimming? Any live foods or even liquifry? Just as a back up plan.