Is the grey kribensis a good choice?

[fin_tank]

I've noticed my male Kribensis doing this too - he'll suddenly turn this solid grey/blue colour, then just as quickly go back to normal. This has been happening a lot more often lately, though. He's with a female (she's on the right) and they're always spawning, so I'm wondering if this colour change is some kind of breeding thing - maybe he's trying to calm her down or something? I've read that the females are usually the aggressive ones, but in my case, it's him doing all the chasing.

[polarwolf]

Just got my Krib a day ago, he's starting to come out of hiding now. Still quite grey, but I notice a slight blue tint on his lower fins, nothing much else colour-wise yet. I'm really looking forward to seeing his full colours, got the ideal plants in place for him already.