MARINE Triggerfish ID
TRIGGERED!
Sleek, colourful biting machines, the triggerfish are part of the old guard of marine tank inhabitants. Here’s a guide to some of the nicest species for a fish-only set-up.
WORDS: NATHAN HILL
A Titan trigger shows off its magnificent and intimidating teeth.
ALAMY
IN MY time as an aquarist, in both the professional and the hobby sense, I’ve been bitten by a lot of things. I’ve felt the slice of sharks cleaving my hands, I’ve had my knuckles crunched by the crustacean-crushing teeth (actually modified scales) of rays, I’ve had the skin rasped from my wrist by furious Spotted tilapia, and I’ve had a Tiger barb swinging from a mole on my forearm.
But there’s a small cabal of aquarists, spread far across the globe, who know exactly what it’s like to be bitten by a triggerfish. I’m one of them, and I can testify that it is the most painful bite I’ve ever felt. My other bites have been accidental, or from curiosity at most. Triggerfish, by contrast, are more malicious, going back for repeated nips. And when a bite occurs it’s deep and damaging. Think of someone going at you with electrically charged nail clippers. It feels just like that.
Bearing that in mind, why on Earth would anyone want to put these well-armed brutes into an aquarium? Often, they don’t, aside from the calmest and smallest species, and even then with extreme caution. Most of these fish are decidedly unsafe in the reef tank, and will prey upon any molluscs and bivalves, shrimps and crabs, as well as small and medium fish. I’ve seen them biting corals before, seemingly just for fun.
Yet for some, the allure of belligerent fish is considerable, and kept alongside marine ‘tankbusters’ like lionfish, groupers and the heftiest of angelfish, (some) triggers can fit in just fine. In fact, I can’t recall a single occasion where a trigger has been bullied by another fish.