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.

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Recent Content

Cirrhilabrus hygroxerus, a new Timor Sea fairy wrasse


Cirrhilabrus hygroxerus, a new Timor Sea fairy wrasse


Cirrhilabrus hygroxerus (male)

Cirrhilabrus hygroxerus is found in fairly shallow waters (about 18–37 meters deep). Like many other fairy wrasses, the researchers note “its habitat appears to be localized to sloping rubble bottoms with scattered, low outcrops of rock or coral and occasional large coral outcrops.”

Fish pee is vital to reef health


 Fish pee is vital to reef health


The Nassau grouper, pictured center with stripes, is one of the larger fish that lives around coral reefs.Craig Layman/North Carolina State University

Big fish — and their pee — are key parts of coral reef ecosystems

by the University of Washington


Coral reefs wouldn’t be the same without their beautiful fish.

Eli’s 10,000 gallon reef aquarium