All of these tetras encounter a GH of more than 15 in at least parts of their natural range, according to FishBase.
Nematobrycon palmeri and N. lacortei,
Hyphessobrycon heterorhabdus,
H. sweglesi (Red Phantom),
H. columbianus (Columbian Tetra),
H. bentosi,
Black Widow (Black Skirt),
Glass Bloodfin (Prionobrama filigera),
Head and Tail Lights,
Silvertips,
‘False’ Penguins (T. boehlkei, the one that’s in the hobby),
X-Ray Tetras
All of these tetras encounter a GH of more than 15 in at least parts of their natural range, according to FishBase.
Nematobrycon palmeri and N. lacortei,
Hyphessobrycon heterorhabdus,
H. sweglesi (Red Phantom),
H. columbianus (Columbian Tetra),
H. bentosi,
Black Widow (Black Skirt),
Glass Bloodfin (Prionobrama filigera),
Head and Tail Lights,
Silvertips,
‘False’ Penguins (T. boehlkei, the one that’s in the hobby),
X-Ray Tetra.
thanks this helped a lot!