They are blue with black markings and yellow tails and fins. Unfortunately, these fish aren’t good for aquariums as they can’t be ethically obtained. They only breed in the wild, never in ...

[Blue Blade Fish] wanted to build an Arduino-based aquarium controller. He’s detailed the system in (so far) 14 videos and it looks solid. This isn’t just a simple controller, either.

Mild winter weather creates ideal conditions for these jelly-like creatures that travel by wind and wash ashore in spring.

The yellow and blue fish didn’t look like any known species. Two Channa nachi, or Farham’s snakehead fish, as seen in an aquarium. Photos shared by Jayasimhan Praveenraj Praveenraj and a team ...

Here are our favorite types of freshwater fish you can keep as a pet. If you're in the throes of setting up a home aquarium, ...