Popeye (Exophthalmia) in Aquarium Fish — Complete Treatment Guide

3 June 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Popeye — the common name for exophthalmia, the protrusion of one or both eyes […]

Velvet Disease in Aquarium Fish — Complete Treatment Guide

2 June 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Velvet is the most dangerous common disease in the aquarium hobby. Not the most

1 June 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Dropsy is the diagnosis aquarium hobbyists dread most — not because it is always

31 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Fin rot is the most consistently mismanaged disease in the aquarium hobby — not

30 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Ich is the most commonly encountered disease in the aquarium hobby and the one

29 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Every disease treatment article on this site — ich, fin rot, velvet, dropsy, Columnaris,

28 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Phosphate is the aquarium parameter most consistently blamed for algae and most consistently mismanaged

27 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Dissolved oxygen is the aquarium parameter that kills fish most silently. Unlike ammonia, which

26 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority TDS (Total Dissolved Solids) is the parameter that generates the most confusion in aquarium

25 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority Nitrate is the endpoint of the nitrogen cycle. Every aquarium with fish produces it

24 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority GH is the water chemistry parameter most directly connected to fish physiology. While KH

23 May 2026 / By prohobby

By ProHobby™ | Ecological Systems Authority KH is the most misunderstood parameter in freshwater aquarium keeping — and the most