YOUR EVERYDAY FIELD GUIDE

Fishes.

Discover the world on the other side of the glass.

Fishes / Habitat

Kuhli Loach: The Fish That Looks Like a Tiny Eel

The kuhli loach has a long, slender, eel-like body banded in orange-brown and black, and spends most of its time burrowing through substrate or hiding in cover rather than swimming in open water. It c

2 min read

Fishes / Habitat

Lighting for a Saltwater Aquarium

Lighting needs in a saltwater tank depend heavily on what you plan to keep. A fish only tank has very different requirements from a coral filled reef, and choosing the wrong type of light either waste

3 min read

Fishes / Nutrition

How to Manually Generate Heat in Your Aquarium If the Power Goes Off

A power cut during a cold snap is one of the more stressful moments in fishkeeping, since a heater that stops working is not immediately obvious the way a stopped filter is. Knowing a few manual ways

3 min read

Fishes / Health

Anchor Worms: The Parasite You Actually Can See

Unlike most parasites that trouble aquarium fish, anchor worms are large enough to spot with the naked eye, thin, thread-like protrusions, usually white, green or reddish, hanging from a fish's body.

3 min read

Fishes / Habitat

The Best Aquarium Plant Substrates

Choosing a substrate for a tank with no serious planting ambitions is fairly simple, but the moment live plants become the focus, substrate choice starts to matter a great deal more, since it directly

3 min read

Fishes / Habitat

Converting a Freshwater Aquarium to a Saltwater Aquarium

Many aquarists eventually catch the saltwater bug after a season or two of freshwater keeping, and the natural next question is whether the tank sitting in the living room can simply be converted rath

3 min read