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

Really giant clams

Gigas clams can achieve over 48″ (120cm) in length and weigh more than 600lbs (270kg).  Clams this massive act like little complete reef structures of their own, supporting entire mini ecosystems. 

Natural zebrafish outcompete Glofish for mates


Natural zebrafish outcompete Glofish for mates


Glofish are genetically modified fish with a range of fluorescent pigmentation. Photo courtesy of Carolina Biological Supply Company

We wanted to title this “Zebrafish think Glofish are ugly,” but the researchers found that female zebrafish were actually more attracted to the gaudy genetically modified males. 

Chrysiptera caesifrons: A new reef damselfish


Chrysiptera caesifrons: A new reef damselfish


Chrysiptera caesifrons from Solomon Islands. Photo by G.R. Allen.

Just how wide is its distribution?

The new species is primarily restricted to the southwestern Pacific Ocean (Fig. 3)  with confirmed records from Halmahera and West Papua, Indonesia, northeastern Papua New Guinea (including  New  Britain,  Admiralty  Islands,  and  Milne  Bay  Province),  Solomon  Islands,  Vanuatu,  New  Caledonia,  and Australia.

Feeding Acropora helps them handle elevated temperatures and CO2


Feeding Acropora helps them handle elevated temperatures and CO2


Click on the image for a larger and clearer version of the infographic.

From the University of Miami Rosenstiel School of Marine & Atmospheric Science:


 

Study Shows Dietary Supplements Are Good For Coral Health

UM Rosenstiel School researchers found coral species can buffer the effects of climate change by increasing feeding during stressful environmental conditions

 

Most people know the health benefits of taking daily supplements, but what about endangered corals?

Vintage bronze-framed nano aquarium

This 13 x 14.75 x 20 inch aquarium (roughly 16 gallons) features not one but three bow-front glass panels with a flat rear glass panel.  The back panel does not extend all the way to the top of the frame; see the photo below.