Articles by Jay Hemdal
Aquarium Inventions
@Jay Hemdal C.2006
This article discusses aquarium inventions, a bit of history and future thoughts. It is offered just as a way to get DIYers thinking about expanding on their ideas. Includes an interview with John Kuhns, the person who invented Novaqua and Amquel. A...
The Harlequin Tuskfish – All Dressed Up, but Anywhere to Go?
Jay Hemdal
Arguably one of the most colorful Pacific reef fish, the harlequin tuskfish is often the premier subject for underwater photographers, and is commonly used as a subject by artists who portray the coral reef environment...
Activated Carbon as a Cause of Head and Lateral Line Erosion (HLLE) in Marine Aquarium fish
Jay Hemdal
c. 2020
Background:
Head and Lateral Line Erosion (HLLE) is the name for a type of skin erosion that affects some species of marine fishes in captivity. It is occasionally referred to as...
Proper Dosing of Medicated Foods
Jay Hemdal
c. 2020
Oral medications are an excellent way to target internal diseases of fishes. Marine fish absorb aquarium water, so in certain cases, they “drink” enough medication from the water to effect a cure. However, freshwater fish actively export...
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Flashlight Fish in Captivity
Flashlight Fish in Captivity
Jay Hemdal
C. 2020
Introduction
Flashlight fish, with their eerie green glowing photophores (light emitting organs), are arguably one of the most unique fish available to marine aquarists. One of only two families of fish kept in aquariums that are bioluminescent...
