The Signal Goby: A Master Mimic with a Sketchy Captive Survival Record

The signal goby (Signigobius biocellatus), aka the twin-spot, two-spot, or crab-eye goby, is an appealing little sand sifter with fascinating behavior that, unfortunately, often adapts very poorly to aquarium life. Nonetheless, specimens still appear in the aquarium trade, so it’s worth discussing the species here—if only to understand why it’s probably best to pass it … [Read More]

Specialized Care is Key to Success with Sun Corals

When ascribed to the various species of the genus Tubastraea, the common name “sun coral” is both fitting and ironic. It’s fitting when you consider that the spectacular polyps of many Tubastraea species can quite justifiably be described as sun-like in both color and shape. On the other hand, it’s ironic in that these species, … [Read More]

How to Prevent Fish from Stealing Coral Food

When it comes to acquiring food, fish will take the path of least resistance. And one of the best ways for a fish to score an easy meal is to snatch morsels away from their glacially slow-moving invertebrate tankmates. Heck, it’s practically like taking candy from a baby, except babies usually cry a lot louder … [Read More]

Don’t Get Burned by Flame Scallops!

Mention beautiful bivalves for the marine aquarium, and the various tridacnid clams (the so-called giant clams) will probably come to mind. Likely, the flame scallops of the genus Ctenoides will too. However, while the tridacnids have a fairly decent survival record in captivity if given proper care and a suitable environment, the flame scallops usually … [Read More]

How to Handle a Hunger-Striking Saltwater Fish

Having a fish that refuses to eat anything offered—or having a specimen that had been eating suddenly lose all interest in food—is a problem virtually every marine aquarium hobbyist can expect to encounter at one time or another. While such “hunger strikes” can be extremely frustrating and disconcerting, they can usually be overcome with patience, … [Read More]

4 Techniques for Target Feeding Marine Fish

Feeding saltwater fish isn’t always a simple matter of plopping food in the water and looking on as the frenzy ensues. In any community of fishes, some species (or individual specimens) are going to be more aggressive in their eating habits than others, so oftentimes you have to be a bit more targeted in your … [Read More]