All In At The Same Time?

If you look at the fish calculator it recommends this:

'It can take up to 6 months to fully mature a tank so as a rough guide you should exceed no more than 20% of your stock level within the first month, 40% after three months, and 60% after six months.'

The CC also says that if you do a fishless cycle first you can go straight to 1 to 3 months (ie 40%). The % the CC gives are for fish-in cycling.

The idea behind fishless cycling is that yes you can get all your fish in one go as you have grown more than enough bacteria for a tank full of fish (sensibly stocked, that is, not overstocked). However, there are some fish that need a tank that has matured before putting them in, that is a tank that has been running trouble free for 6 months. There are more micro-organisms in a tank than just the filter bacteria. We concentrate on those because lack of them can kill fish. But all the other micro-organisms have their part to play too, and it can take a few months for everything to grow. There are some fish, neon tetras for example, that just seem to die in newly cycled tanks and the only explanation that anyone can come up with is that they need some micro-organism to be present.
 

Which fish have you decided on? If you intend to get endlers, then half a dozen of them at one go is fine once the cycle has finished. The same applies to a shoal of microrasboras such as the chili rasbora.
But I would class cherry shrimp as creatures needing a mature tank so I would wait a while before getting them.

Seriously Fish says Daisy's rice fish need a tank at least 45cm long x 30cm wide. If your tank is less than this, you could always wait until multiple tank syndrome sets in and you get a bigger tank 

And yes they are nice fish. The females are plainer than the males, as is usually the case, with blue eye rings, orange on the underside from the anal fin into the tail and more orange on the top border of the tail fin. Males have the same blue eyes and orange, though the underside orange extends under the belly and they have orange pectoral fins as well. And their body is a light steel blue.