Life After Purchase: A Guide to Introducing New Fish to Your Aquarium’s Social Dynamics

Moving can be tough on a kid. New places, new school, making new friends, meeting new bullies . . . I’m sure some of you can relate. So can your fish. Life can be tough even after getting shipped halfway around the world. So how can we, as responsible aquarists, help them out? The answer … [Read More]

5 Circumstances that Warrant a Species (or Specimen) Tank

A diverse community of marine fishes presents quite a visual feast, especially when housed in a reef system brimming with colorful corals. However, in some stocking situations, it’s preferable to avoid the “typical” marine community (if there is such a thing) in favor of a single-species or even a single-specimen tank. Ah, but if you … [Read More]

Are You in Tankmate Aggression Denial?

Fish wounds and injuries can result from a variety of different influences, with tankmate aggression being among the more commonplace. Unfortunately, hobbyists don’t always recognize this problem right away when it manifests itself. Jay Hemdal, Curator of Fishes and Invertebrates for the Toledo Zoo, explains why in the following excerpt from his book The Salt … [Read More]

Don’t Overestimate Piscine Individualism!

LFS staffer to customer eyeing sohal tang as potential purchase: “Hmm, I don’t think that fish would be a good choice for your tank. It can get very aggressive, and most of the fish you have in there now are pretty shy and passive. Customer to staffer: “Yeah, I know sohals have a reputation for … [Read More]

Marine Fish Issues: When It’s Best to Leave Well Enough Alone

In most cases, issues affecting marine fish—diseases, behavioral issues, compatibility concerns, etc.—should be addressed and rectified as quickly as possible, lest small problems transform into much bigger ones. But there are some circumstances in which the best course of action is to take no action at all—or at least take a wait-and-see approach. Here are … [Read More]

Why Territoriality is a Major Issue in Marine Tanks

One of the more challenging aspects of marine fishkeeping, particularly for those interested in creating a mixed community of interesting fishes, is choosing different species that will coexist peacefully in captivity. This might seem easy enough given the fact that, in the wild, so many different species can often be found sharing the same patch … [Read More]

5 Good Reasons to Spend Time Observing Your Saltwater Fish

With today’s chaotic schedules, it’s the norm for many marine aquarium hobbyists to see their fish only in passing (e.g., catching a fleeting glimpse when tossing in some food just before heading off to work) or when performing routine maintenance chores. But there are several good reasons not to sell yourself—or your fish—short with respect … [Read More]

6 Tips for Choosing the Right-Sized Tank for Saltwater Fish

Have you ever noticed that species profiles written about marine fish almost always include a recommended minimum tank size for the species? Have you also noticed that tank-size recommendations for the same species can vary wildly from one author, dealer, or fellow hobbyist to another? How can that be? The fact is, determining the appropriate … [Read More]