About Us

About us

Based in Central Queensland, Australia, the CoralsDownunder team has over 30 years of experience with reef aquarium fish and corals. Each member of the CDU team is not merely an employee but also a dedicated Reef aquarium hobbyist. Our experience extends from professional livestock collection, livestock export, coral propagation and aquaculture and aquarium installation and maintenance. We pride ourselves in not only supplying the best livestock available, but by also offering exceptional customer service and professional advice. We specialize in providing the rare and unique.

Our vision

For a long time in the Australian reef hobby we have seen the best of our local corals get exported overseas. Many a hobbyist has dreamed of being able to obtain some of these beautiful pieces of corals – not even realizing they had in fact originated from our local waters. Now we are able to offer these exceptional pieces, rarely if ever available before locally, at an affordable price.

Another important aspect CDU feel strongly about is the education of fellow reefing enthusiasts. Wherever possible, we willingly share our extensive knowledge and advice to fellow hobbyists. The future of our hobby lies in the education of reefing enthusiasts and developing and maintaining sustainable reefing practices.

CDU pride themselves in maintaining good reefing practices such as practicing sustainable harvest and collection methods and are pro-advocators for coral propagation and aquaculture. CDU maintains close relations alongside professional marine biologists. CDU will have an extensive range of aqua cultured corals as we continue to grow and they will be posted as they become available. These will include acropora, montipora, chalice, zoanthids, coralimorphs and much much more.

Our quality guarantee

We currently have over 15,000L in our care and growing and we always aim to maintain perfect water parameters.

Ammonia – 0
Nitrite/Nitrate – 0
Phosphate – 0.01-0.03
KH – 9
Calcium: 400-440ppm.
Supplements added daily via computer automation.
Kalkwasser is added daily as well as liquid calcium.
Lighting- 10 -14K T5’s and blue actinics.
RO top up
Feeding several times weekly with frozen mysis, brine shrimp, rotifers & phytoplankton
Filtration through a massive skimmer and zeolite and antipjhos-fe
Regular water changes
We pride ourselves in being experienced Aquarius and all of our livestock undergoes extensive preparation and tank hardening before being offered for sale.

Only healthy specimens are collected with bases intact.

When these are brought back to our facility they are carefully inspected and removed of pests such as crabs and mantis shrimps and cleaned of all debris including removal of macro algae, sponges, tunicates and detritus. Macro algae can grow and smother the coral and other life forms such as sponges and tunicates may die during shipping and tank hardening and can cause water pollution along with coral tissue recession.

Once the coral has been cleaned we use power tools to remove any dead or damaged polyps and cut the coral to manageable sizes or into frags for propagation.

Where required, we will mount pieces to plugs or discs and allow to tank harden.

Corals are maintained under optimum conditions with good flow and lighting during tank hardening. They are maintained for a minimum of 2-4 weeks under these conditions and inspected daily for any signs of ill health, with unhealthy corals being removed and discarded. During tank hardening, corals often brown out due to stress. Once they have healed and hardened they regain their colour, often becoming more colourful than first collected and being much hardier.

Be aware of “Chop Shop” operators, we do not believe in selling or shipping fresh cut frags.

All fishes are held under quarantine ensuring specimens are healthy and feeding before sale. All imported fishes are imported under AQIS approved facilities by our suppliers and quarantined for a week before being shipped to us for further inspection.

All of these measures ensure that we are only supplying quality, healthy livestock which has coloured up and is best adapted to life in home aquaria.

About our pictures and sizing

All of the photos on our site are taken with the correct mix of white and blue light with an Cannon underwater camera. We only edit the pictures to obtain the most true to life image. What you see in the picture is what you see in real life with the naked eye under same lighting conditions.

Please note that the egg create we use is 1cm squares.

We maintain an equal ratio of white to blue lights on all our systems using quality brand bulbs including, Aquamedic, ATI & KZ bulbs. This not only serves to bring out the best colours when viewing, but actinic light supplementation is essential for healthy coral growth.

If you see WYSIWYG (what you see is what you get) in the product description, this means the picture you are viewing is of the actual piece you will purchase. You can expect changes in coral colours due to different aquarium conditions. This is out of our control, but we strive to maintain the same ideal conditions as from where the coral is found in the wild.

CDU uses diameter, polyp or small/medium/large to best describe the coral’s size. Some corals may be priced pp (per polyp) in corals with multiple polyps, whereas others are sized according to diameter and height. All our corals are premium export quality and graded accordingly with Master Grade being top class, followed by Ultra Grade, A Grade & B Grade.

CDU invests a substantial amount of time into identifying and naming corals for the retail and export market. This is not only for branding purposes but will also help to ensure lineage can be maintained and traced throughout the hobby. Many of our corals are extremely rare or entirely new discoveries to the hobby and we hope to establish firm bloodlines of our livestock for future generations worldwide. CDU uses online resources such as www.coralpedia.com to assist with coral identification as well as books such as Jen Veron’s Corals Of The World.

Sizing may consist of small (from 1cm-7cm), medium (from 7cm-12cm) and large (from 12cm and up). With longer pieces, we will average out the length and width to give an approximate diameter. Please use this as a rough guide only and note that we tend to underestimate coral sizes rather than overestimate.

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