Reef Underground

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Reef Underground Reef Aquarium Shop Online & Retail
www.reefunderground.com.au
6/2812 Logan Road Underwood QLD 4119

21/10/2026

First temporary Coral Table ready to fill!

19/10/2026

New Shop Water Filling

17/10/2026

Dosing carbonate (alkalinity) in a marine aquarium offers several essential benefits for maintaining a healthy and stable reef environment. Here are the primary advantages:

Maintains Stable pH Levels - Proper alkalinity helps buffer the water, preventing pH swings that can stress corals and marine life.

Supports Coral Skeletal Growth - Alkalinity is directly involved in the calcification process, enabling corals and calcifying invertebrates to build and maintain their skeletons more effectively.

Prevents Calcium Decline - As corals grow and deposit calcium carbonate, alkalinity tends to drop if not replenished, so dosing keeps levels optimal.

Promotes Healthy Reef Ecosystem - Stable alkalinity contributes to overall water chemistry balance, supporting consistent growth, coloration, and health of corals and invertebrates.

Enhances Reproduction and Repair - Proper alkalinity levels facilitate tissue repair and reproductive processes in corals and other reef organisms.

Balance alkalinity with calcium and magnesium to ensure overall parameter stability. Dosing carbonate (alkalinity) is vital for stable water chemistry, supporting coral skeletal growth, vibrant colors, and overall reef health. Consistent monitoring and proper supplementation help achieve a thriving marine ecosystem.

Our Carbonate + Trace is a concentrated source of liquid carbonate, 180,000 ppm (mg/L) or 10,000dKH and our own unique blend of trace elements. We have added our Coral Power Trace C elements as well as Boron and Bromide into this mix using our proven Coral Essentials Method dosing regiment. When using Carbonate + Trace there is no need to add additional trace elements.

For optimum results the alkalinity (KH) levels in marine tanks need to be checked regularly to determine the take up in your system. A We have found ideal KH levels to be at about 8-9 dKH for most aquariums.

1ml will raise the carbonate levels by 1.8ppm (0.1dKH) for each 100L of tank water.

https://www.coralessentials.com.au/carbonate--trace.html
https://www.coralessentials.com.au/primary-elements-dosing-calculator.html

14/10/2026

Manganese is the number 1 trace element additive to give your Goniopora coral huge boost in colour and growth. They will love you for it!

Benefits of dosing manganese (Mn) in a marine aquarium.

Essential micronutrient for photosynthesis - Manganese (Mn) is a cofactor in photosystem II and other enzymes in algae and symbiotic zooxanthellae; adequate Mn supports healthy photosynthetic activity in macroalgae, phytoplankton, and coral symbionts.

Supports enzymatic and metabolic processes - Mn is required for enzymes involved in antioxidant defenses (e.g., Mn-dependent superoxide dismutase), amino acid metabolism, and other cellular functions in invertebrates and fish.

Aids macroalgae and refugium productivity - In refugia or algae scrubbers where macroalgae growth is desired, trace Mn can relieve a limiting micronutrient and improve growth and nutrient export capacity.

Indirect benefit to coral growth and coloration - By supporting zooxanthellae health and overall metabolic function, appropriate Mn levels can contribute to better coral growth and coloration over time.

ICP testing of marine aquarium tanks is fast becoming a must do part of our regular maintenance activities if we are to ensure the water quality remains pristine. We have listened to our customers and developed a range of the most required individual trace elements to tweak the levels in your system. It's as simple as analysing your ICP test results, decide the level your tank should be at, enter values into our dosing calculator, add the recommended amount. Just another way all of us here at Coral Essentials help make sure your tank is the best it can possibly be.

​Available in 50ml.​

For the advanced aquarist 1ml (20 drops) will raise the manganese levels by 0.006 ppm (mg/L) or 6 ppb (µg/L) for each 100L of tank water. If you know the manganese depletion rate then dose accordingly.

More information on https://www.coralessentials.com.au/coral-power-manganese.html
https://www.coralessentials.com.au/trace-elements-dosing-calculator.html

13/10/2026

Electrician customers (local) please shoot me a msg 😄

28/09/2026

Bunker sale!

25/09/2026

New Shop Update

100+ Coral uploaded and 35% off!
24/09/2026

100+ Coral uploaded and 35% off!

Please help us fund our new store build!All support is very much appreciated
24/09/2026

Please help us fund our new store build!
All support is very much appreciated

Red Sea Aiptasia X has been selling big time these past 2 weeks!So either other shops have run out or there’s a hobby wi...
24/09/2026

Red Sea Aiptasia X has been selling big time these past 2 weeks!
So either other shops have run out or there’s a hobby wide Aiptasia outbreak !
Either way we have plenty of stock available on the website 😆

Address

6, 2812 Logan Road
Underwood, QLD
4119

Opening Hours

Thursday 11am - 5pm
Friday 11am - 5pm
Saturday 10am - 4pm

Telephone

+61499855192

Website

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