DD The Aquarium Solution

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  • DD Aquascape Natural Aquarium Rock

    $159.00

    Features

    • Natural aragonite rock
    • Formed from ancient coral reefs
    • Suitable for reef and marine aquariums
    • Suitable for cichlid and hard water aquariums
    • Clean, safe and easy to build with
    • Free of nuisance algae and pests
    • Large surface area for bacterial colonisation
    • Bond together to form larger structures
    • Low environmental impact

    Aquascape Rock is supplied in 20Kg boxes and in 2 standard sizes.
    ANR001 – 20Kg Mixed Box
    Contains a mix of rock sizes ranging from 0.5 – 2.5Kg
    ANR002 – 20Kg Large Box
    Contains a smaller number of larger rocks ranging from 3 – 4.5Kg

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  • DD Coral Viewing Glasses

    $10.00

    See your corals true colours through D-D’s Coral Viewing Glasses!

    Our orange tinted glasses remove the actinic blue light which dominates saltwater aquariums to help you see your corals and fish in a more natural light. You will be stunned at the extraordinary pop of colour once the blue is taken away.

    These glasses have UVA protection and eliminate reflected and scattered light. Not only does your tank look cool, but you look cool too!

    Other Uses

    • Eliminating glare from computer screen
    • Reduce glare reflected off of roads, water, snow, and other horizontal surfaces
    • Reduces headaches
    • Prevents melatonin suppression therefore improving sleep
    • Ideal for many sporting activities including: cycling, driving, running, fishing, racing, skiing and climbing

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  • DD JUMPGUARD FLEXI CUT OUT SET

    $8.00

    Note:

    Cutting into the standard square frame, especially on larger frames, will generally reduce the rigidity and we would recommend installing one of one or more cross braces, as required, to retain the structural integrity.

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  • DD jumpguard multi cut out set

    $14.00

    Each Jumpguard Multi-cutout Set provides you with 3 different cutout options to allow you to modify the frame around any light brackets, cables or pipework etc.

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  • H2Ocean Compact Auto Top-Up

    $120.00

    Specifications

    • Power input: 100˜240 VAC 50-60 HZ
    • DC Pump: Head 250cm, Flow rate: 280 lph
    • Glass mounting thickness 12.5mm

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  • H2Ocean Skimmer Guardian

    $105.00

    Introduction

    H2Ocean Skimmer Guardian

     

    The Skimmer Guardian uses a optical sensor with a magnetic mount. The magnetically coupled sensor makes it easy to install and adjust to the desired level on the collection cup. The sensor is mounted externally so no holes are required in the collection cup for installation.

     

    If the level in the cup reaches the sensor, the Skimmer Guardian will shut down the skimmer pump immediately to prevent your cup overflowing. A built in auto time delay also prevents false alarm due to power outages. Once the skimmer cup is drained the Skimmer Guardian will restart the pump.

     

     

    Features

    • Automatically guards your protein skimmer from overfilling

     

    • Easy installation with magnetic attachment of optical sensor.

     

    • Fits 99% of skimmers without any modifications.

     

    • Latching sensor – automatically restarts when cup is emptied.

     

    • Optical and audible alarm.

     

     

     

    Specification

    • Power input/output 100-240 VAC

     

    • Max output power 2200w

     

    • Max sensor mounting thickness 8mm

     

    • 3m Sensor cable

     

    Easy installation

     

     

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  • ClariSea SK-3000 Atomatic(GEN2)

    $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

    $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)

    $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.

     

    Add to cart
  • ClariSea SK-5000 Fleece filter refill

    $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

    $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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