Seeing Red: The Colorful, Cantankerous Maroon Clownfish

Many of the clownfishes have a well-deserved reputation for feistiness. But there’s one clown that makes all the others seem like milquetoasts by comparison—the maroon clownfish (Premnas biaculeatus) from the Indo-West Pacific. Though it’s among the hardier and more strikingly…

Does the Emerald Crab Earn Its Algae-Eating, Reef-Safe Reputation?

Among the various and sundry marine life commonly sold to aquarium hobbyists for utilitarian purposes is the emerald crab (Mithraculus sculptus). Oft touted for its propensity to gobble up bubble algae and other irksome algal forms, M. sculptus has become…

Yellow Boxfish: Endearing but Perhaps Best Avoided

For hobbyists inclined to purchase livestock on impulse, a yellow boxfish (Ostracion cubicus) paddling about in a dealer’s tank can prove almost irresistible. Typically sold as juveniles at just a few inches in length, these boxfish are as cute as…

Keeping the Aptly Named Coral Beauty Angelfish

If you have a real yen for marine angelfishes but lack the tank space to accommodate one of the large iconic species, such as the queen angel (Holacanthus ciliaris) or French angel (Pomacanthus paru), you’ll be pleased to know that…

Chrysiptera parasema: a Gem of a Damsel

Ask the average marine aquarium hobbyist to identify the most aggressive coral-reef fishes, and the damselfishes of the family Pomacentridae are likely to be placed somewhere very close to the top of the list. For many damsel species, the reputation…

The What and When of Feeding Saltwater Fish

Feeding time is one of the most rewarding aspects of keeping saltwater fish. Let’s face it, fish don’t exactly reciprocate affection the way dogs and cats do. The closest we can really get to interacting with them is when we…