Brightwell Aquatics Magnesion 500mL
Concentrated Magnesium Supplement for All Marine Fish & Reef Aquaria.
Overview:
Highly-concentrated ionic magnesium solution.
Provides magnesium, which helps regulate the balance between calcium and
carbonates in aquarium water, and is a component of aragonite, the mineral
secreted by reef-building organisms such as corals, clams, and their allies to
form skeletal material.
Stronger than most competing products.
Contains no unwanted organic material such as EDTA, gluconate, or
polygluconate.
Formulated by a marine scientist.
Technical Background:
Magnesium plays a vital role in reef aquaria: it helps maintain calcium and
carbonate (composing the majority of measurable alkalinity) concentrations by
limiting unwanted inorganic precipitation with each other. In the absence of
adequate magnesium ions, calcium and carbonate ions bond rapidly, depleting
their concentrations in the system and creating the false impression that
heavier supplementation is required to re-establish the desired concentrations.
No matter how much calcium is added, its natural seawater concentration of 412
ppm will never be sustained until the magnesium concentration begins to
approach 1,290 ppm. Once the balance between calcium and magnesium has been
established, subsequent calcium supplementation yields immediate positive
results. Keeping magnesium within a range of 1,290-1,320 ppm will maintain the
desired balance, and provides enough of the element to reef-building organisms
for the formation of aragonite (~0.10% Mg by weight).
The rate at which magnesium is extracted from the water is determined by the
stocking density of reef-building livestock, type of lighting, and other
conditions; therefore, each aquarium will have different requirements for the
rate of magnesium supplementation. Once the rate of magnesium uptake in the
aquarium has been determined, the proper dosing rate of this product can be
easily calculated. It is recommended that a quality salt mix with the proper
not augmented) alkalinity and concentrations of major, minor, and trace
elements be used to establish natural seawater parameters in the reef aquarium,
providing a stable ionic foundation on which to build.
Instructions and Guidelines:
Basic: Shake product well before using. Add 5 ml (1 capful) of product per 20
US-gallons of aquarium water every other day or as needed to maintain the
magnesium concentration within a range of 1,290 - 1,320 ppm. When used in this
fashion, 250 ml treats up to 1,000 US-gallons (3,785 L).
Advanced: Determine the magnesium concentration in the aquarium using an
accurate test kit before supplementing. Shake this product well before using.
Each ml of Magnesion will increase the concentration of magnesium (“[Mg2+]”) in
1 US-gallon (3.785 L) of water by 26 ppm. If the initial [Mg2+] in the aquarium
is below 1,288 ppm, add this product at the maximum rate of 10 ml per 20
US-gallons daily until the desired concentration is attained, then dose daily
or weekly as needed (see below). Always try to maintain the [Mg2+] within a
range of +/-10 ppm. To determine the dosing rate of this product once the
desired [Mg2+] has been acquired, measure the daily rate of magnesium uptake
i.e. the decrease in magnesium) in your aquarium by measuring the aquarium's
Mg2+] at the same time each day over a one- to two-week period. To determine
the daily dosing rate (preferable to weekly dosing) for magnesium maintenance:
estimate the volume of water in the entire aquarium system; divide the daily
decrease in [Mg2+] by 26; multiply this number by the volume of water in the
system to get the daily dosage required (ml) to maintain a stable [Mg2+]. Daily
dosing maintains a more stable [Mg2+] (and more natural environment) than
dosing weekly, in which the [Mg2+] spikes just after dosing and then gradually
decreases throughout the course of the week.
Guaranteed Analysis: Magnesium (min) 2,959 mg/oz. (100,000 ppm).