Clearwater habitat in Costa Rica. Cichlids, Gobys, Characins

In this video you see these species: Sicydium salvini (Court-ship) Hypsophrys nematopus (Pair with juveniles) Tomocichla tuba (Adult solitaire) Cryptoheros sajica (Juveniles) Astyanax robustus (Schools) All in the river Rio Blanco in Costa Rica.