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. 

20140729 Waikiki Aquarium 4- coral Extension

One of the most amazing things I've seen in Waikiki Aquarium is placing what we would normally consider "not reef safe" fish in their reef displays. Below is their South Pacific display with the mighty Gigas clam. You can see the beautiful table shelf acropora coral happily growing and extending with coral eating butterfly fish in the tank.

 This is a "smaller" tank (probably 1000 gallon) with anemone and clownfish display. Interesting enough- the tangs in this tank all look very beat up. They don't look unhealthy, just really beat up, I am guessing from all the clowns (very aggressive and territorial) and probably tangs beat each other up among themselves.

20140719 Waikiki Aquarium 2

Part II of the Waikiki Aquarium tour today-
I've already said this was where I first fell in love with the hobby. But the true reason I fell in love with it was because of its clam display. The setting is a bit different now than before as they have moves some of the larger "small clams" to an outdoor display (to come later). But they still host a variety of beautiful "small" giant clams. Such as these three tridacna squamosa in a reef tank with some of the happiest soft and large polyp stony corals I've ever seen

 Here is another Long nose hawk, not as large as the display by the entrance but equally as adorable

 Another squamosa under the light. I also want to point out that almost ALL reef system aquariums here are exposed to actual natural sunlight with supplemented 1000W metal halide bulbs- you cannot beat this lighting environment.

With huge system capacity and space, you can clearly tell that you can break a lot of the "rules" on what's reef safe and what isn't. For example, normally people would not consider harlequin tusk wrasse nor copper-banded butterfly "reef safe". But you can see that they are not only thriving in this system, but so are the corals!

 An illustration of how "happy" corals should look like, look at the tissue extension on all of them! And the water seems really bubbly because of the unique "surge" tank system Waikiki Aquarium invented to provide natural, life-like surges for the best of corals' health and oxygenation.

20140717 Waikiki Aquarium part 1

This is the birthplace of my aquarium hobby. Ten years ago I came to this aquarium and fell in love with all reef dwelling creatures. Ten years later I love these reef animals just as much, but with much more respect.

 The Waikiki aquarium has been one of the leading research and educational facilities in marine biology. Unlike most aquariums in the mainland focuses on tourism with unnecessary dolphin or beluga whale shows, not to mention over priced admission- The Waikiki aquarium charges a very reasonable $12 / adult admission with optional audio tour included at no additional cost.

This is a very happy long nose hawkfish living in the display tank by the entrance. It's the largest long nose hawk I've ever seen, over 5" and very perky. This tank also features several butterfly fish (you can see the long nose in the background) that does not touch the corals at all.

7 Saltwater fishes you should never get part 5

The next fish on my list of "not to keep at home" is the Moorish Idol, featured in Disney hit film "Finding Nemo" (Which by the way the word Nemo drove me crazy while I was working in the aquarium)

Moorish Idol

One of the worst thing about pop culture is to introduce a false image about certain practices. Keeping percula clown fish and/or the Pacific blue tang are usually not very challenging for average reefers. However, even some of the most experienced reef hobbyists have trouble keeping the elegant Moorish Idol alive in captivity.

Because of its need of swimming room and it's diet needs, not only you will need to have an extra large system for this fish to move around, you will also need to "teach" them to accept food in captivity. I have made attempts while working in the store to no success. And for a creature of this beauty to perish is not only a heart breaker, but a shame.

Banner butterfly fish

If you want something that possess the similar elegance as the Moorish Idol while swimming without the difficulty in keeping, the schooling banner butterfly fish is a great substitute. They are not only easier to keep (I have personal experience in seeing them eat like hogs), hardy, but also very robust in the home aquarium. So please spread the word and educate everyone you know to not follow the example of a children's movie and attempt to keep the Moorish Idol in a small system as shown in the movie.

bannerfish schooling