Among the pomacentrids (damsels and clownfishes) are many species that rank exceptionally high when it comes to hardiness in aquaria (thus their once common use as tank cyclers) but also tend to mature into little hellions that can turn a…
The Royal Dottyback: Pretty but Potentially a Royal Pain
Often described as a purple fish that looks like it’s been dipped in yellow paint (or is it a yellow fish that’s been dipped in purple paint?), the royal, or bicolor, dottyback (Pictichromis paccagnellae) is a visually stunning marine species…
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…
Bubble-Tip Anemone Safety Tips
The bubble-tip anemone (Entacmaea quadricolor), or BTA, is justifiably popular in the marine aquarium hobby, being relatively hardy and easy to keep as anemones go as well as being a suitable host anemone for many clownfish species. But to horribly…
When Should Squabbling Marine Fish Be Separated?
I recently introduced a Kole tang to my tank, and it keeps getting in fights with the resident yellow tang. So far, neither one has been seriously hurt, but I’m worried about where this is heading. Do I need to…
Tomato Clownfish: A Stunning Beginner Fish Ripe for the Picking
Lately it seems many of the species profiles I’ve written have been on fish that either grow too large for the average home aquarium or are otherwise poor choices for aquarium keeping for one reason or another. By now, some…
The Sohal Tang: A Big, Belligerent Beauty
The sohal tang (Acanthurus sohal) is one of many fish species available in the marine aquarium trade that should come with a warning label. It’s a gorgeous fish and generally very hardy, which is a plus, but anyone contemplating purchasing…
3 Misconceptions About Small Marine Fish
As human beings, it’s in our nature to assign certain traits to small animals—cute, dependent, harmless, defenseless, etc. Perhaps we think this way because when it comes to animals, people included, smallness is usually correlated with infancy. However, if applied…
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,…
Humbug Damsel: Prepping for the Hunt
There’s a reason I chose to spotlight Dascyllus aruanus, the humbug or three-striped damselfish, in this profile. “Caribbean” Chris and I will soon be matching wits with four representatives of this species that have laid claim to a large marine…