20141030 Species spotlight- Harlequin Tusk Wrasse

The Harlequin Tusk fish (Choerodon fasciatus) is one of the most beautiful fish in the aquarium trade. This is a robust, hardy, and colorful fish with lots of personality. The only catch is- they are "Not Reef Safe". Despite needing a large tank size to house this fish, I would consider this a beginner fish since they are hardy and robust.

Harlequen Tusk Wrasse

The Harlequin Tusk can get pretty big in the wild, but I have not seen any over 8" in private aquariums. They are very greedy eaters and would happily accept mysis, krill, small fish, feeder fish, you name it, they eat it! They are also quite disease tolerant, in the years I worked in the trade I have not seen one die from starving or illness. The only one we lost is- jumping out! Like all wrasses, this fish is a jumper. So you should have a good, heavy lid over the tank for them since they are very powerful.

To keep this fish, just make sure you have reef condition- water temperature no warmer than 82 no cooler than 76. Salinity should be Specific gravity range 1.022-27. They will grow big and need lots of swimming room, so I do not recommend keeping it in tanks smaller than 120G. Do not keep this fish with small, slow fish, any crustacean, or clams as the chance of them becoming food is high. The fish will do fine with coral and other larger, robust fish like tangs, angels, triggers, puffer, eel, etc.

20141028 Reef Safe

A Cleaner Shimp

One of the most common terms one hears or asks in the marine aquaria is "Is ____ Reef safe?"

Well, to answer that question, first we must define what is "reef safe"?

Here is an article from Wikipedia defining reef safe.

So in short, I think most people would agree reef sate in the home aquarium means the critter you are referring will NOT hurt invertebrates, including coral. Even though in the broad spectrum, there really is very limited true "reef safe" creatures as most fish, even those who are vegetarian, would need to consume crustacean at some point in there life journey. But for the sake of general reference, it means a fish/invertebrate will not attack or cause long term damage to other commonly available aquarium creatures. 

Even those that are considered reef safe, one can still find an occasional specimens that is a black horse who wants to redefine their diet habit.

To illustrate, here is a small sample of fish that are "reef safe"

Yellow Tang- Primarily vegetarian, very rarely harms invertebrates.

Clown fish- Not an herbivore but will not attack invertebrates.

Seahorse- Very gentle creature, will not attach invertebrates, but will eat pods.

A list of "reef safe" invertebrates

Tridacna clams- will not bother anyone, no feeding necessary with sufficient lighting and adequate water quality

Small Polyp Stony coral- same as above

Cleaner shrimp- will not bother anyone, will help pick on parasites on fish

What about "not reef safe" fish?

Any fish in the following family cannot be trusted:

Angel- most will nip on corals or clam

Butterfly- most will nip coral

Trigger- will eat any crustacean, will also harm smaller fish, but not necessarily corals

Puffer- Same as above

Lion- Same as above

Grouper- Same as above

Some not reef safe invertebrates:

Mantis shrimp- will eat ANYTHING alive

Lobster- will harm fish/clam

larger crabs- will harm fish/other invertebrates

Anemone- this is a tricky one, but they may consume smaller, weaker fish or crustacean.