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163 guides · Page 22 of 28
Vibrant aquarium fish swimming among lush green plants in a freshwater tank.

Fishes / Habitat

Should You Vacuum Your Aquarium Gravel?

Gravel vacuuming is one of those aquarium chores that gets recommended constantly and questioned just as often, particularly once a tank has matured and grown a healthy population of plants and benefi

2 min read

Close-up of a colorful blue cichlid fish swimming in a lush freshwater aquarium.

Fishes / Habitat

Correct Aquarium Water Temperature

Temperature is one of the few water parameters a fish cannot escape or adjust to on its own, since fish are cold blooded and their entire metabolism, from digestion to immune response, runs at whateve

3 min read

Vibrant Congo tetra fish swimming in a lush aquarium environment.

Fishes / Habitat

Ember Tetra: A Small Fish With an Outsized Glow

The ember tetra, Hyphessobrycon amandae, is one of the smallest commonly kept tetras, rarely exceeding two centimetres, with a warm orange-red body that glows under the right lighting. It comes from a

2 min read

Two bright goldfish swimming gracefully in a richly planted aquarium.

Fishes / Habitat

Rainbow Shark: A Colourful Loner

The rainbow shark, despite the cheerful name, carries a fairly plain grey-black body offset by vivid red or orange fins, with the name referring more to the fin colour than any rainbow pattern across

2 min read

A vividly colorful coral reef ecosystem showcasing diverse marine life.

Fishes / Habitat

Should You Vacuum the Sand Bed in a Saltwater Aquarium?

This is one of the more debated questions among reef keepers, and the honest answer is that it depends on the type of sand bed in the tank. Vacuuming helps in some setups and actively undoes the inten

3 min read