Which wrasse should I add?

[waynemah]

I'd replace a six line with another six line, but maybe add another wrasse at the same time. This might help to open doors for other wrasses as they come up.

Otherwise, I would really be patient and find the exact one you like the best. If you can only have one, it's worth the wait. It took me almost a full year to find a non-finicky leopard wrasse, and he eats pellets.