Leonard Ho
  • Leonard Ho

    I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.

Recent Content

A new and very gold fish

A new and very gold fish

Pethia sahit

Pethia sahit is a new barb species from the Krishna River system in the Western Ghats mountain ranges of India.  These barbs are brilliant metallic gold in coloration with large and very well-defined scales. 

Time lapse of Acropora growth

Particularly fascinating is the formation of the radial (side) corallites (skeletal cup where the polyps sit within). As the axial (tip) corallites lay down new skeleton, new radial polyps emerge from the sides and develop into the Acro branches we’re all familiar with.

A new invention safely brings deep-water fishes to surface

A new invention safely brings deep-water fishes to surface

Fishes collected in the twilight zone. © 2015 California Academy of Sciences Bart Shepherd inserts the collection jar into the chamber housing. © 2015 California Academy of Sciences

From the California Academy of Sciences:

New invention safely transports unknown, deep-dwelling fishes to the ocean’s surface

Scientific divers and biologists at the California Academy of Sciences engineer a portable chamber to study new species from 200 – 500 feet deep


Strange and beautiful fishes from the ocean’s deep and lesser-known twilight zone reefs are hitching a ride to the surface thanks to the newly invented SubCAS (or Submersible Chamber for Ascending Specimens).

An Amazon Aquarium at Amazon.com

An Amazon Aquarium at Amazon.com

Amazon.com Spheres Building Aquarium by Tenji

In 2017, Tenji completed an amazing planted aquarium exhibit for online retail giant, Amazon.com. Seen below is the massive 18x2x2′ contoured aquarium featuring a jaw-dropping “living wall” (live plant wall). 


Most aquarists start their journey in fishkeeping by simply mixing random animals into an aquarium and decorating the aquarium to suit their personal aesthetics.  As we learn more, some of us endeavor to recreate natural habitats instead of mish-mash communities of species from different parts of the world because there is a special appeal watching animals interact with their environments as nature intended … saying nothing of creating healthier natural environments for fishes.