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Miracle Mud


Miracle Mud® is the original refugium mud substrate developed by Leng Sy in late 1989.

“From my previous experience with aragonite sand, I favor the use of Miracle Mud. It appears to provide a different habitat and, quite possibly, nutrients for corals. Over 90% of corals thrive using the EcoSystem Method, as compared to about 50% using the Berlin Method.”

Thomas Frakes -SeaScope / Aquarium Systems 2000.

EcoSystem Benefits

Miracle Mud


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Miracle Mud® is a product of EcoSystem Aquarium®.  Miracle Mud is comprised of up to 80% oceanic mud, harvested from deep waters, and is then dried on land. The remaining 20% is a formulation of minerals and trace elements that make Miracle Mud a true “MIRACLE.” The mineral and trace element composition is as follows:

Aluminum, antimony, barium, beryllium, bismuth, boron, bromine, cadmium, calcium, cerium, cesium, chromium, chloride, cobalt, dysprosium, erbium, europium, fluorine, gadolinium, gallium, germanium, gold, hafnium, holmium, indium, iodine, iridium, iron, lanthanum, lithium, lutetium, magnesium, manganese, molybdenum, neodymium, nickel, niobium, osmium, palladium, phosphorus, platinum, potassium, praseodymium, rhodium, rubidium, ruthenium, rhenium, samarium, selenium, silicon, silver, sodium, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, zirconium.


  1. Miracle Mud continuously replenishes the mineral and trace element concentration of the aquarium water, creating the ideal environment for fish, corals and other invertebrates.
  2. Miracle Mud ensures an environment so healthy that it dramatically reverses the effects of head and lateral line erosion (HLLE).


  3. Miracle Mud creates an environment so healthy that even a novice aquarist can have his or her own reef aquarium showpiece, such as the aquarium in the pictures shown below!  This reef aquarium (predominantly stony corals) requires additional supplementation of minerals and trace elements, as described in the ECO Balling Method.  Other types of reef aquariums (soft coral-dominated) will receive sufficient amounts of minerals and trace elements from the Miracle Mud, which is what makes Miracle Mud so unique, and makes keeping and maintaining a reef aquarium so simple! Anyone can have a beautiful reef aquarium regardless of his or her level of experience!
    EcoSystem Reef Tank. This 350 gallons reef aquarium belongs to Markus Resch of Germany. Markus uses about 60 lbs of Miracle Mud in his custom made refugium sump. He also installs a small protein skimmer that run about 6 hours a day. He uses dosing pumps to deliver the three parts calcium supplies to his reef. Water change is done weekly at about 10% automatically. Up to 100 fragments of corals are harvested every month! This tank also house about 50 varieties of anthias plus another 20 or so of other fish. Markus feeds his fish 6-8 times a day in order to keep his anthias thriving. Anthias need constant food supplies throughout the day otherwise they will perish! Despite this heavy feeding, Markus still need to add Ammonium Chloride every night to supply nitrogen (nitrate) for his fast growing corals. Too low of nitrate will lead to corals bleaching. The EcoSystem Method can become very efficient denitrator filter if concentration of phosphate in aquarium is kept low. Three closed up photo shots follow…
    IMG_0742Markus’ Tank Closed Up

    Not only these corals are healthy and thriving but the colors are also very intense!



    Markus’ Tank Closed Up

    Not only these corals are healthy and thriving but the colors are also very intense!


    Markus’ Tank Closed Up

    Markus run out of room for his corals so he starts growing them on the aquarium wall! Very nice indeed! Can you do this too? Absolutely yes! If you want to know more of this tank set up please call Leng at 714 543 4100 or visit our website

  4. A protein skimmer is NOT required when using Miracle Mud! Using Miracle Mud as refugium substrate**, as described in the EcoSystem Method, makes a protein skimmer unnecessary, as can be seen in the reef aquarium pictured above.

    **EcoSystem Method vs. Refugium: By definition, a refugium is a separate compartment connected to the main aquarium filtration system, in which plants and micro-organisms can grow and reproduce.  It is not a stand-alone filtration unit.  In the typical reef setup, whether or not you include substrate in the refugium is not important, if your goal is to simply create a microscopic reef food web for your reef aquarium inhabitants.  However, the refugium is just one component of the entire EcoSystem Miracle Mud Method, in which Miracle Mud substrate is a key element that makes the EcoSystem Method extremely unique, simple and user-friendly. The EcoSystem Miracle Mud Method is the only comprehensive, stand-alone filtration system unit in the world!

  5. Miracle Mud makes an ideal and highly efficient denitrifying refugium filter, leading to a pristine environment for fish, corals and other invertebrates. The fine consistency of Miracle Mud produces distinct aerobic and anaerobic layers that enable it to be both an excellent nitrifier, as well as a denitrifier.


a.  Miracle Mud is the most ECONOMICAL refugium filter substrate to use if the goal is to remove nitrate from the system water!  Unlike other refugium substrates on the market that will need at least 6 inches (15 cm) of deep sand bed (DSB) to achieve denitrification, Miracle Mud only requires a 1-inch (2.5 cm) deep layer.  DO YOUR HOMEWORK! Multiply the price of other products by a factor of 4 to 6!



b.  Unlike other refugium substrates on the market, Miracle Mud will NOT lead to any potentially serious problems, such as “old tank syndrome” or a “nutrient sink,” as happens with most DSBs.  These problems can lead to an imbalance in the aquatic environment (i.e., persistent high levels of phosphate and nitrate, as well as nuisance algal growth).  The fine consistency of Miracle Mud will prevent waste materials from sinking to the bottom of the refugium substrate, as happens with other refugium substrates on the market.

c.  Unlike other refugium substrates on the market, Miracle Mud will continuously replenish the minerals and trace element concentration in the aquarium, so that ANYONE can set up and maintain a reef aquarium with ease.