Unmistakable and striking

From southern Japan to the seas of Tasmania, from Hawaii to the Red Sea, the acropora yongei It is one of the most common hard coral in the reef. Resistant and adaptable, can be found a few inches under the sea surface, battered by strong waves and scorching sun or in the quiet deeper waters where light comes in with less intensity and waves are almost imperceptible.

With thick branches, separate, untidy and with colours that vary from yellowish green to pale brown acropora yongei is an easily recognizable species. This fact, coupled with its incredible abundance, makes this coral a highly ubiquitous animal. I could say that my eyes have seen tons of acropora yongei in most reefs I have visited, I remember a dive in the east coast of Mauritius where I could enjoy several hectares upholstered exclusively of this kind of acropora. It was boring but it maintained a vast ecosystem of fish and invertebrates. it's hard to say, but in my opinion acropora yongei could be the most abundant coral in the world, well above any other coral, either soft or hard, long polyp or short polyp.

This acropora yongei is easily distinguished by the shape of their radial corallites, spoon-shaped (cochleariform), long and slightly flared walls. Its size and growth rate is so superior to that of any other acropora that it soon rises above their competitors and get all the sunlight. Fortunately for the rest of corals, the yongei is a tree-growth acropora, with long separate branches, that will not produce much shade under them.

Acropora yongei

It is not ugly, but there is a remarkable difference between the wild yongei and the Bali Green Slimer. No wonder that almost no wild specimens imported, as well as being less attractive are more expensive. Personally, I have never seen a wild specimen in any import but I have witnessed many, many tons in the reefs of Thailand and Mauritius for example.

A great success from ORA

Bali Green Slimer Was one of the biggest commercial hits of the popular ORA Farm. If my memory does not fail, the first frags were set on the market in the year 2.004 and it is still one of their best sellers.

Its attractive neon green, coupled with its remarkable resistance and growth rate make this coral one of the most sought by acroporas for the newcomers to the SPS world. And it is a really tough and adaptable acropora, even more than some other corals considered for beginners, like montipora digitata and Pocillopora verrucosa.

Bali Green Slimer

And they not only hit the market with the selection of the first specimen, acropora which is much nicer than the usual yongei pale and unattractive. The name they chose was a magnet for the curious, and best of all, that is completely true: to check it, you just have to take out a Bali Green Slimer of the water, and it will begin to secrete slime, tons of transparent and odorous slime. It's really awesome.

Bali Green Slimer in the aquarium

Just a piece of advice: place it in a spot with plenty of space around unless you're willing to make frequent pruning. This acropora yongei is an extraordinarily rapid growth coral, that can easily exceed a rate of calcification of 20 kgs of Ca(CO3) per square meter, per year. Under ideal conditions, it will probably have doubled in size in the same time than any other acropora has only grown a few centimeters.

Bali Green Slimer is a acropora that adapts well to any type of lighting. If the light is very strong, the color will be paler on the tips of its branches; otherwise it will be fairly uniform throughout the body.

A frag can embed the base to which it was glued in less than a week. Thereafter we observe rapid growth of the axial polyps, followed by the transformation of some of the radial in axial polyps and thus new branches. This process can be observed in less than a month.

frag bali green slimer

This acropora yongei likes to be hit by strong currents and waves, and its branches will grow thicker and vigorous; but it will also live quite happy in a tank with weak water current, although it will not display its full potential.

It does not like the water too clean, a low but detectable level of nitrates will make it grow as if it were weed.

Given its extraordinary resistance, growth rate and beauty, Bali Green Slimer is a coral that should not be mssing in any aquarium.