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163 guides · Page 19 of 28
Vibrant goldfish swimming gracefully in a blue aquarium setting.

Fishes / Habitat

Bubble Eye Goldfish: A Variety That Needs Extra Care

The bubble eye is among the most distinctive and most fragile of the fancy goldfish, recognisable by the large fluid-filled sacs beneath each eye. It also lacks a dorsal fin, which affects its balance

2 min read

Vibrant blue and purple Betta fish swimming in a glass aquarium with decorative stones.

Fishes / Habitat

How to Safely House Betta Fish Together in a Single Tank

Male bettas cannot be kept together under any circumstances; two males in the same tank will fight, often fatally. Female bettas are a different story, and a group of females kept together, known in t

3 min read

A vibrant pink fish swims gracefully alongside lush aquatic plants in a freshwater aquarium.

Fishes / Habitat

Lambchop Rasbora: A Softer Take on the Harlequin

The lambchop rasbora, Trigonostigma espei, is a close relative of the harlequin rasbora and easily confused with it, though its black body patch is smaller, more triangular and does not extend as far

2 min read

Close-up of a Red Eye Tetra swimming near driftwood in an aquarium.

Fishes / Habitat

Black Skirt Tetra: A Dark, Flowing Silhouette

The black skirt tetra, Gymnocorymbus ternetzi, is named for the flowing, skirt-like black anal and dorsal fins that trail behind its silvery grey, black-striped body. It comes from Brazil, Bolivia and

2 min read

A mesmerizing view of a school of fish swimming amidst lush aquatic plants in a freshwater aquarium.

Fishes / Habitat

How to Clean Aquarium Sand Without Disturbing Your Fish

Sand looks wonderful in a well kept aquarium, but it has a reputation among beginners for being fussy to clean compared with gravel. In practice, it just needs a slightly different technique, hovering

3 min read