The last couple of times I've dropped by my local store I've seen Boesemani Rainbows for sale ($15/pair). I remember seeing pictures of them online and being stunned by the colors (for example, see here. But the ones in the store are never anywhere near to brilliant (I mean, nowhere even in the same realm). I'm wondering, are they likely to brighten up when they get in better surroundings or when they mature? Are they only that brilliant when they are mating? Or are they just not quite as beautiful as I had hoped?