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 with one eye bulging out of its socket is an alarming sight for any aquarium owner. This condition, known as Popeye or exophthalmia, is one of the more visible health problems in a marine tank.
3 min read
Fishes / Habitat
The bala shark, also called the tricolor shark, is not a true shark at all but a large, torpedo-shaped member of the carp family, sharing only a superficial resemblance and swimming style with real sh
2 min read
Fishes / Habitat
The rosy barb, Pethia conchonius, carries a rosy pink to orange-red body, most vivid in breeding males. It is capable of reaching up to fourteen centimetres in the wild, but aquarium-raised fish are c
2 min read
Fishes / Habitat
Bettas in the wild live in shallow, slow moving rice paddies and roadside ditches across Thailand, choked with vegetation and almost no current. A bare tank with plastic plants is a poor imitation of
4 min read
Fishes / Habitat
The yoyo loach gets its playful common name from the dark markings along its silvery body, which in young fish can resemble the letters Y and O repeated along the flank, though the pattern becomes mor
2 min read
Fishes / Habitat
The upside-down catfish genuinely spends much of its time swimming belly-up, a striking and unusual behaviour among aquarium fish that is not a sign of illness but a normal, deliberate adaptation. It
2 min read
