Well, it's pretty much like I said for your "first pair", if she seems to get injured, separate them. You could try a different male, your first 1 might be better, very defined fins...but I think not your second krib...I still think it's a different species.
I couldn't see your vid very well, too tiny for old eyes. Do you have a couple smooth flat-ish rocks for them to chose to lay eggs on? Vertical surfaces are lesser IME...but they'll make do if both are ready.
I couldn't see your vid very well, too tiny for old eyes. Do you have a couple smooth flat-ish rocks for them to chose to lay eggs on? Vertical surfaces are lesser IME...but they'll make do if both are ready.