Juvenile Pinnate Batfish are pretty much the cooliest juvi fish out there.
© Ivan Choong
Juvenile Many-Spotted Sweetlips (Plectorhinchus chaetodonoides)
Juvenile Pufferfish (?)
Juvenile Barramundi Cod (Chromileptes altivelis)
IUCN status: Vulnerable
Threats: Habitat loss, fishing, aquarium trade
Adult & Juvenile Harlequin Shrimp (Hymenocera picta)
Juvenile Harlequin Shrimp (Hymenocera picta) yet to develop it’s characteristic colour…or any colour at all for that matter.
Batavia Batfish, (Platax batavianus) juvenile.
Juvenile emperor angelfish (by JennyHuang)
Angelfish are extremely territorial, not particularly parental, and would drive out their juveniles from their territory, as they would other competition. To allow juveniles to remain in the pratected territory, nomming on all the food, safe from predators, they appear as a completely different morph.
Nature’s way of keeping angelfish good parents, despite the hindrance of them being fish.