Video
Costa Rica
The clear water river Rio Blanco near Guápiles.

These are the fish species you see in the video:
Sicydium salvini (Court-ship), Hypsophrys nematopus (Pair with juveniles), Tomocichla tuba (Adult solitaire), Cryptoheros sajica (Juveniles) and Astyanax robustus (Schools)

These are the fish species you see in the video:
Amatitlania sajica, Sicydium salvini, Brycon costaricensis, Astyanax orthodus, Tomocichla tuba, Agonostomus monticola and Poecilia gillii
This map shows the location:
Sri Lanka
Near Polhena in the southern coast.

Here is a juvenile Gymnothorax permistus defending its territory against a foolish Danish diver.
This map shows the location:
United Arab Emirates
Underwater footage of the freshwater fish Arabian pupfish Aphanius dispar in natural habitat Ras al-Khaimah, United Arab Emirates (UAE).

All videos here are made by
Peter Petersen