Are they about to mate?

[delta5]

One keeps going under the other and pushing up against the private area. Then they go pecking at the corner of the tank. Right on the silicone.

[Akili]

Most likely they are going to spawn but sometimes this can go for days even weeks,patience and it will pay off.

[warblad79]

The tube has to be visible when they are about to spawn.

[delta5]

Here is the one I think is the female.

93773

[warblad79]

Not yet, you will notice it once they start spawning

[delta5]

Now one is chasing the other one. When the one gives up the other starts poking it's private area with it's mouth....