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The Ghost in the Darkness

The Ghost in the Darkness

By Aquatropic Staff | April 17, 2026

Even the name Ghost Knifefish sounds like something from the imagination of a science fiction author, and once you see the fi … Read more
It's Not a Syn

It's Not a Syn

By Aquatropic Staff | April 14, 2026

One of the coolest little cats around is the Dwarf Petricola Catfish (Synodontis petricola). Truthfully, all the Syno's are s … Read more
Gar? Barracuda? Characin?

Gar? Barracuda? Characin?

By Aquatropic Staff | April 9, 2026

Ctenolucius hujeta is a remarkable fish, with many common names. We call it the Silver Hujeta Gar, but you'll see it marketed … Read more
Thinking About Thayeri

Thinking About Thayeri

By Aquatropic Staff | March 18, 2026

In 1865 and 1866 there was a famous expedition into the Amazon for the sake of biological and geological exploration. Over th … Read more
Your Own Little Vampire (Crabs)

Your Own Little Vampire (Crabs)

By Aquatropic Staff | March 13, 2026

Not every LFS around gets into Geosesarma Crabs. Which is a great shame, these are very interesting critters and they need an … Read more
You're My Fish Blue!

You're My Fish Blue!

By Aquatropic Staff | March 5, 2026

Alexandre Rodrigues Ferreira was the first Brazilian naturalist to explore the Amazon and Pantanal in Para and Mato Grosso. E … Read more
A Bumblebee Sized Bumblebee Goby

A Bumblebee Sized Bumblebee Goby

By Aquatropic Staff | February 27, 2026

Brachygobius xanthomelas is one of several fish called a Bumblebee Goby, right now (02/2026) there are at least nine other sp … Read more