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    ClariSea SK-3000 Atomatic(GEN2)

    $384.30 $549.00

    Features

    • High volume filtration capacity
    • Minimal installation footprint
    • Completely replaces the need for filter socks
    • Self-assembly for easy cleaning
    • Multiple installation options
    • Automatic advance of dirty fleece
    • Multi-function smart controller
    • End of roll audible alarm
    • Filter jam/float error/water depth alarm
    • Phosphate free fleece material
    • Special low-odour fleece material
    • Integrated fail-safe overflow
    • Silencer plates for quiet operation
    • Water bypass system

    Specifications

    • Recommended flow rate: 3,000 l/h (800 US gph)
    • Particle size removal: down to 20 microns
    • Maximum submerged water depth: 20cm (8”)
    • Hang-on bracket height adjustment: up to 12cm (4”)
    • Maximum sump glass thickness for hang on bracket: 13mm (1/2″)
    • Recommended aquarium size at 5 x tank turn over (3000l/hr) = 600lt
    • Recommended aquarium size at 4 x tank turn over (3000l/hr) = 750lt
    • Inlet connection: 32mm
    • Filter fleece: 10cm (4”) width – length 25m (82ft)

    Mounting & Installation Options

    The Gen2 ClariSea is very flexible and easy to position within your sump:

    • You can hang it on the back, front or sides of the most sumps.
    • You can freestand it on the base of a shallow sump with a water level below 200mm.
    • you can freestand it on a box or shelf in deeper sumps.
    • You can feed it from the front or from the back.
    • You can feed water from the top, side or at an angle.
    • You can even pump feed it.

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    ClariSea SK-3000 Fleece filter refill

    $19.20 $24.00

    ClariSea Replacement Fine Fleece Roll 25m

    Replacement Fine Fleece roll for the ClariSea Fleece Filters SK3000

    • SK-3000 fine fleece roll is also suitable for SK-10
    • Phosphate free fleece material
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    ClariSea SK-5000 Atomatic(GEN2)

    $405.30 $579.00

    Features

    • High volume filtration capacity
    • Minimal installation footprint
    • Completely replaces the need for filter socks
    • Self-assembly for easy cleaning
    • Multiple installation options
    • Manual advance of fleece (upgradeable to automatic advance)
    • Phosphate free fleece material
    • Special low-odour fleece material
    • Integrated fail-safe overflow
    • Silencer plates for quiet operation
    • Water bypass system

    Specifications

    • flow rate: up to 5,000 l/h (1320 US gph)
    • Particle size removal: down to 20 microns
    • Maximum submerged water depth: 20cm (8”)
    • Hang-on bracket height adjustment: up to 12cm (4”)
    • Maximum sump glass thickness for hang on bracket: 13mm (1/2″)
    • Recommended aquarium size at 5 x tank turn over (5000l/hr) = 1000lt
    • Recommended aquarium size at 4 x tank turn over (5000l/hr) = 1250lt
    • Inlet connection: 32mm
    • Filter fleece: 15cm (6”) width – length 25m (82ft)

    Mounting & Installation Options

    The Gen2 ClariSea is very flexible and easy to position within your sump:

    • You can hang it on the back, front or sides of the most sumps.
    • You can freestand it on the base of a shallow sump with a water level below 200mm.
    • you can freestand it on a box or shelf in deeper sumps.
    • You can feed it from the front or from the back.
    • You can feed water from the top, side or at an angle.
    • You can even pump feed it.

     

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    ClariSea SK-5000 Fleece filter refill

    $28.00 $35.00

    ClariSea Replacement Fine Fleece Roll 25m

    Replacement Fine Fleece roll for the ClariSea Fleece Filters SK5000

    • SK-5000 fine fleece roll
    • Phosphate free fleece material
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    D-D True Seawater Refractometer

    $55.30 $79.00

    Easier to Read & ATC

    Easier to Read

    One of the other problems with most refractometers is that the scale displayed normally reads from 0-100ppt when we are really only interested in the region from 30-40ppt. Our new Seawater Refractometer has therefore been specifically designed to read from 0-40ppt which gives you 2.5 times the resolution of a normal 0-100 scale.

     

    Auto Temperature Compensation (ATC)

    There is a lot of misunderstanding concerning the way the ATC feature works and its effect on the refractometer at different ambient room temperatures.

    Salinity is a measurement of a mass of salt in a mass of water and therefore does not vary with temperature however a refractometer does not measure salinity directly but measures the refractive index which is then displayed as salinity. The refractive index of a solution does vary with temperature therefore the reading that you measure with a refractometer is always temperature dependant.

    An ATC refractometer has a bimetal strip inside the instrument that moves the reading scale as the temperature changes to compensate for the change in refractive index. What people do not generally understand is that it is the temperature of the instrument and not the water temperature that is important as the small sample of water used for testing will equilibrate within seconds to the temperature of the refractometer.

    Once correctly calibrated at the set calibration temperature of 20oC the refractometer can then be used in environments where the ambient temperature and therefore instrument temperature would heat up or cool down within the range of the ATC which is between 10 and 30 centigrade.

    Calibration

    If you look at the scale above you will see that the refractometer states that it is calibrated at and displays the SG of seawater at 20C.

    Most salt refractometers use this temperature and will be marked 20C or 20/20. Calibration should always be carried out with the instrument at 20C which is close to the average room temperature in most cases. Allow the refractometer to stand at this temperature for 30 minutes to equilibrate.

    The D-D refractometer is designed with a copper body which is more expensive to manufacture but responds faster to ambient temperature changes than other materials.

    Note that the refractive index is also dependant on the wavelength of light too and therefore a light source closest to daylight should also be used.

    D-D refractometers are calibrated at 20C and so the calculated specific gravity at 35ppt displays a reading of 1.0266. This is the equivalent to a specific gravity reading of 1.0264 for a water sample temperature of 25C using a standard hydrometer that has a calibration temperature of 77F or 25C.

    Further reading – Salinity and its measurement article

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    DD Aquascape Construction Epoxy

    $8.75 $12.50

    Coralline Algae Colour – for marine and reef aquariums.

    Suggested Uses

    • Bonding rock to rock and making rock bases during aquascaping.
    • Bonding and positioning corals within the aquarium.
    • Fragging corals to frag bases.
    • Making clam bases.
    • Repairing leaking pipework and equipment.
    • Plus 1001 other general uses in the aquarium and about the home.
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    DD Coral Colour Lens

    $20.30 $29.00

    What’s in the box

    1x Amber lens
    1x Yellow lens
    1x Close focus lens (10x)
    1x Lens clip
    1x Lens cloth

    Photos taken with Coral Colour

    These fantastic photos are direct from an iPhone and were taken with our Coral Colour lens after only 5 minutes practice.

    Pictures courtesy of Inga at Reefkeeper Rugby.

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    DD H2Ocean Nutri-Fix bio pellets – 1000ml

    $80.50 $115.00

    NutriFix NP Bio Pellets

    Nutri-Fix NP is a bio media and bacterial food source adapted specifically for the reduction of Nitrate and Phosphate in aquaria. This revolutionary fluidised media brings all of the benefits of liquid Carbon/Vodka dosing methods without the risk of over dosing the aquarium.

     

    Benefits and Use

     • Reduces both nitrate and phosphate

    • No additional carbon dosing required 

    • Allows increased feeding of fish and corals

    • 100-200ml of NutriFix per 100L of water

    • Protein skimming required

    • Best used in a fluidised reactor  

     

     

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    DD H2Ocean pro+ Aquarium Salt 23kg ( 575-690 liters )

    $87.50 $125.00

    H2Ocean Pro+ is a new pro formula aquarium salt – produced by a solar evaporative process which produces a totally natural base salt where all of the main and trace elements are in complete balance as nature intended.

    The pure natural salt is then specially enhanced for aquarium use by elevating specific elements that over time become depleted, such as calcium and magnesium which are used by corals and coralline algae for growth.

    Free from Nitrate and Phosphate.

    CHEMISTRY
    The formulation for H2Ocean+ salt has been developed by D-D following many months of testing and evaluation. The salt is designed to dissolve quickly and easily and to have a specific chemistry which in our opinion is the optimum formulation to maintain a healthy reef and allow regular water changes whilst maintaining a natural balance.

    Calcium and Magnesium levels are boosted to replace that used up through coral growth within the aquarium whereas chloride levels are slightly lowered to allow post additions of calcium and magnesium chloride with a minimized affect on the chloride balance.

    Parameters when mixed to a S.G: of 1.025 @ 25°C = 35.5 ppt

    Parameters Level Range Units
    pH 8.3 8.2-8.4
    dKH 9.3 8.7-9.8
    Calcium (Ca2+) 440 430-460 mg/l
    Magnesium (Mg2+) 1340 1300-1380 mg/l
    Chloride (Cl-) 19550 19960-20130 mg/l
    Potassium (K+) 410 380-420 mg/l

    RO WATER
    H2Ocean Pro+ salt is recommended for use with Reverse Osmosis water or soft water with a calcium level lower than 30 mg/l. As the calcium level in H2Ocean+ is already enhanced to 440 mg/l then mixing with hard tap water which contains additional calcium may raise the concentration above normal recommended levels and cause the calcium to precipitate out of solution.

    RO water removes undesirable ions like phosphate and nitrate from your tap water which otherwise would contribute to nuisance algae in your aquarium.

    D-D manufactures a range of Reverse Osmosis units which are available from your retailer.

    MAGNESIUM PRO PLUS FORMULA
    Many salts concentrate on boosting calcium levels and ignore magnesium levels.

    Maintenance of the correct magnesium concentration is equally important in a reef aquarium and will make it much easier to maintain stable calcium, pH and alkalinity.

    MIXING
    Using a clean container:

    • Add 1 Kg of H2Ocean+ to 24.2 litres of water ( 1 Lb to 2.9 U.S. Gallons )
    • Mix well until all of the salt is dissolved and the solution is clear.
    • We recommend that you aerate for 24 hours and bring to temperature before use.
    • Check the S.G. before addition to the aquarium.
    • If required add more salt or water to obtain the correct S.G. reading.
    • Remember that S.G. changes with temperature.

    D-D recommends the use of a portable refractometer for accurate and consistent measurement of the S.G. of your salt solution.

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    DD Jumpguard DIY Aquarium Cover

    $31.50 $45.00

    TC7575 – 75cm x 75cm nominal size.

    The maximum size frame that can be made from each kit will be 3.6cm longer than stated in each direction.
    The tank should be measured from inside face of glass to inside face of glass.

    Included in the kit

    The Jumpguard Aquarium Cover is a kit of parts which allows the aquarist to create a custom frame for their specific aquarium. The rigid corners and extruded aluminium section create a very solid frame which sits neatly inside glass of the aquarium glass, resting on the top lip.

    Kit Contents:

    • 4 x Aluminium frame sections
    • 4 x Plastic corners
    • 2 x Plastic handles
    • 1 x Length of rubber spline
    • 1 x Sheet of clear mesh
    • 1 x Spline roller tool
    • 1 x Instruction manual
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    DD MAGSCRAPER BLADES

    $8.40 $12.00

    Replacement Blades

    Twin pack replacement stainless steel blade for Magscrape L & XL

     

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    DD MAGSCRAPER Pro L (16 mm)

    $45.50 $65.00
    • Blade sare made from 316L Stainless Steel
    • Super strong magnet
    • Anti corrosion
    • For 10-16 mm glass thickness
    • Floating
    • Come with 316 stainless blade for dealing with stubborn algae.
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    DD MAGSCRAPER Pro XL (19mm) GLASS CLEANERS

    $73.50 $105.00
    • Blades are made from 316L Stainless Steel
    • Super strong magnet
    • Anti corrosion
    • For 10-24mm glass thickness
    • Floating
    • Come with 316 stainless blade for dealing with stubborn algae.

     

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    DD Media FILTER BAGS (2 PER PACK)

    $6.30 $9.00

    Filter bags for filter media, such as Rowaphos, Rowacarbon. Each pack consists of 2 filter bags

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    DD Ultra-Flow Weir Comb

    $24.50 $35.00
    • Adjustable runner to be used on glass 6-8mm (or even 10mm) thick glass.
    • When used on thicker glass than 10mm,cut off the runner and bond directly onto the glass.
    • When using the runner on glass 10mm or less, the grill can easily be removed for easy cleaning to maintain high flow.
    • 60cm in length
    • Unique vertical and horizontal drain slots
    • Allows 30-50% more water flow through the slotted sections
    • Vertical type weir
    • Easy to set-up
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