YOUR EVERYDAY FIELD GUIDE
Discover the world on the other side of the glass.
A little help with…
Follow your curiosity.
Fishes / Senior Care
The cardinal tetra, Paracheirodon axelrodi, is often mistaken for the neon tetra at a glance, but the two are easy to tell apart once you know what to look for. On a cardinal, the red stripe runs the
2 min read
Fishes / Behaviour
Flashing, the sudden, jerky habit of a fish darting sideways to rub its body against gravel, decor or glass, looks almost comical the first time a keeper spots it. It is not play. A fish that flashes
3 min read
Fishes / Getting Started
Saltwater fishkeeping has a reputation for being expensive and unforgiving. Some of that is true. Most of it is manageable once you understand what you are actually building: a small, closed ocean tha
4 min read
Fishes / Getting Started
Every experienced aquarium keeper has had the same unsettling moment: a fish count comes up short and there is no obvious explanation. Before assuming the worst, it is worth working through the places
2 min read
Fishes / Habitat
The freshwater butterflyfish has a flattened, upward-facing mouth and broad, wing-like pectoral fins that give it its name, spending nearly all its time motionless at the water's surface waiting to am
2 min read
Fishes / Health
Sometimes called beard algae by hobbyists because of its fine, hair like appearance, Bryopsis is often mistaken for ordinary green hair algae, and that mistake costs a lot of wasted effort, because th
2 min read
