they are lovely. The last lot didn't play in the flow like these new one's. They should love the big tank as there's loads of flow in there to play in but right now they'd be angelfish food so they can play safely for a lot longer!
Are these are Trigonostigma heteromorpha harlequins?
They are real neat, I have espei harleyquins, a smaller version of your harleys, sometimes known as Lambchops. Anyway, I find that harleyquins are a nice colourful shoaling specie addition for any suitable tank imho
I don't know what their latin name is Ch4rlie, I call them gold headed purple harlequins, my lfs call them midnight rasboras. I believed they were a hybrid and so couldn't breed but Zante found an online post from someone who had fry so now I'm very confused what they are.
It doesn't matter of course, they are lovely and by upping my number to nearly 20 I should start seeing better things from them one these new one's grow on and can go in my big tank