Guanine-less stickleback

These are normally pigmented siblings of the fish below

Gaunine-less stickleback. This appears to be a random mutant that has shown up in this cross. My guess is that this mutation is recessive and these few fish have "hit the jackpot" and have inherited two recessive alleles for this trait. My plan is to grow these fish out, breed them and try and make a stable line.

Courting female pipefish

This courtship is done early in the morning when the lights first come on. It seems that the best set up is one female with a few males (although we have multiple females in this tank). Give the video a few seconds as they start really courting toward the end. I will try and get pipefish mating video soon.