YOUR EVERYDAY FIELD GUIDE
Discover the world on the other side of the glass.
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Follow your curiosity.
Fishes / Behaviour
A fish hanging near the surface, mouth working rapidly, is one of the clearer distress signals in the hobby, and it almost always means one thing at the root: the fish cannot get enough oxygen from th
3 min read
Fishes / Health
Ammonia burns describe the direct physical damage ammonia causes to a fish's skin, gills and fins, distinct from the broader systemic poisoning covered elsewhere in this series. Where ammonia poisonin
2 min read
Fishes / Getting Started
Water hardness is one of those parameters that beginners often skip past entirely, focusing instead on ammonia and pH. That is a reasonable place to start, but hardness quietly shapes how well certain
4 min read
Fishes / Getting Started
Aggression in a saltwater tank rarely comes out of nowhere. Most fights trace back to one of a small number of predictable triggers: territory, competition for food, stress, or simply adding fish in t
3 min read
Fishes / Habitat
The albino cory is, in most cases sold in the trade, simply an albino colour form of the bronze cory, sharing its size, shape and behaviour but with a pale pink-white body and red eyes instead of the
2 min read
Fishes / Health
Fin rot shows up as ragged, fraying fin edges, sometimes with a whitish or reddened margin, and it's one of the more common bacterial problems marine keepers encounter. The good news is that caught ea
2 min read
