Glossary
general hardness
Measure of the overall concentration of calcium, magnesium and other ions in a water sample with values usually quoted in units of degrees (dGH), of which 1 dGH corresponds to 17.848 ppm. Also referred to as total or permanent hardness.
Used in 59 species profiles
- Apistogramma baenschi
- Apistogramma barlowi
- Apistogramma elizabethae
- Apistogramma eremnopyge
- Apistogramma mendezi
- Apistogramma sp. 'breitbinden'
- Apistogramma trifasciata
- Axelrodia riesei
- Axelrodia stigmatias
- Betta akarensis
- Betta albimarginata
- Betta antoni
- Betta balunga
- Betta bellica
- Betta brownorum
- Betta burdigala
- Betta channoides
- Betta coccina
- Betta dennisyongi
- Betta dimidiata
- Betta foerschi
- Betta hendra
- Betta ibanorum
- Betta krataios
- Betta livida
- Betta mandor
- Betta midas
- Betta miniopinna
- Betta persephone
- Betta pi
- Betta picta
- Betta pinguis
- Betta pugnax
- Betta rubra
- Betta rutilans
- Betta simorum
- Betta tussyae
- Betta uberis
- Ladigesia roloffi
- Pangasianodon gigas
- Pangasionodon hypophthalmus
- Pangasius sanitwongsei
- Parosphromenus alfredi
- Parosphromenus allani
- Parosphromenus anjunganensis
- Parosphromenus bintan
- Parosphromenus deissneri
- Parosphromenus harveyi
- Parosphromenus linkei
- Parosphromenus nagyi
- Parosphromenus opallios
- Parosphromenus ornaticauda
- Parosphromenus quindecim
- Parosphromenus sp. 'Sentang'
- Parosphromenus tweediei
- Sawbwa resplendens
- Trochilocharax ornatus
- Tucanoichthys tucano
- Vieja bifasciata