Thanks guys! I'm currently living in Hong Kong and will only sell locally - Sorry, unless you're willing to travel here and pick up a few lol. I have never shipped fish abroad and not sure how it works.
I was looking back at some videos of my last spawn from last year, which only 4 survived, and comparing both spawn at the age of 8 weeks, the previous spawn seems a lot larger and more developed. All 4 fry had already developed full colours at this stage. I guess there's more competition for food. I think I will start to feed them frozen daphania and maybe frozen blood worms to help them grow quicker.