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• Water Treatment System
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Dupla Products & Systems (Germany)

Water Treatment System

Aquariums are fundamentally over-populated with fish relative to their water volume. Metabolic products from fish, but also from snails, plants and other sources build up and contaminate the water.

The aquarium owner counters this process by changing the water regularly and by means of suitable filtration. Purely mechanical filtration by means of cotton wool, carbon, clay tubes etc. is being replaced more and more by “biological filtration. “Biological” means: filtration by means of a medium colonized by bacteria which remove all materials contaminating the water and thus assure cleansing of the aquarium water.

Specific bacteria are also able to even regulate the remains of chelate compounds and over-fertilized chelates. Industrial discharge water techniques also make extensive use of this filtering technique. Regeneration of the contaminated water is possible up to the point of drinking water quality.

Duplagan

is a water conditioner which contains all the elements for the well-being of the fish that are present in natural water, but not in tap water. This includes the colloids found in natural water as well as bactericides, that limit the development of skin and scale bacteria build-up.

Dupla KH Generator and Dupla KH + GH Generator

Dupla offers two products that improve the water stability by promoting chemical stability. Dupla KH Generator increases the carbonate hardness of the water and Dupla KH + GH Generator increases both the carbonate and the total hardness of the water in equal parts.

Dupla Biokaskade

It has been especially developed for the trickle filter system. It is so designed that extensive bacterial colonies are able to form on it without the filter surface closing up and becoming smaller, as does happen with fine textured filter elements.

Dupla Minikaskade

Filter media for biological filtration. It is designed for use in closed filter systems. It has an extremely large surface of 3900 mm2 per shere and due to its small dimesion and optimum space utilization, it provides full efficiency for small filter systems as well.

Dupla KH-Bildner and Dupla KH + GH-Bildner

These products improve the chemical stability of the aquarium water. Dupla KH-Generator increases the carbonate hardness, and Dupla KH+GH-Generator increases the carbonate and total hardness in equal porportions.

Dupla Carbon

It is a filter carbon especially developed for use in aquaria. Dupla Carbon high-performance activated charcoal, possesses an inner surface area of approximately 540,000 m2 per litre of carbon, therefore guaranteeing an optimum speed of absorption.

DuplaVario

It can be employed either as a three-way valve or as a control valve for water flow. Possible areas of application are for instance the connection of CO2 reactors, calcium reactors and other installations which need additional water flow.

Dupla Ca-Reaktor

A specially developed precipitator for extraneous gases allows permanent operation of the reactor at high CO2 gas concentrations and consequently at constantly low pH levels. This guarantees its outstanding effectiveness.

Dupla mV-Control Alpha

A microprocessor-based measurement and control device for redox potential in the aquarium. The device features visual and audible alarm indication. It regulates with a switching delay and hysteresis of 5.0 mV. The separation of the control panel from the switching unit makes it possible to use low voltages to energize the control panel, thus rendering it totally safe.

Duplabacter

A bacteria preparation for the start and optimization of the nitrification process in fresh and marine water. The bacteria in Duplabacter are most suited to start work immediately and multiply after the initial set up of an aquarium. Duplabacter is also recommended to boost and stablize the bactera fauna in times of extremely high pressure, such as excessive feeding, breeding of young fish or water changes.

Item no.	Product	Description
	Dupla Algo Control Delta	Specially fermented barley straw for a three-month algae prophylaxis for aquaria up to 240 l.
	Dupla Algo Pack Delta	Refill pack for the reactor of the Dupla Algo Contol Delta.
	Dupla KH+, 80 g	Producer of carbonate hardness. 10 g harden 100 l by 4.0° dH.
	Dupla KH/GH+, 60g	Producer for overall and carbonate hardness. 10 g harden 100 l by 4.5° dH.
	Dupla Gan, 200ml	Water treatment with protective colloids for 400 l of aquarium water. Protecs mucous membrane and gills by binding chlorine and heavy metals.
	Dupla Gan, 500ml	Water treatment with protective colloids for 1,000 l of aquarium water.
	Dupla Bacter, 100ml	Bacterial preparation for nitrifi cation. For 200 l of aquarium water.
	Dupla Phos, 350g	Removes phosphate and silicate compounds from the water and thus prevents slime algae growth. Suitable for all fi lter models. For up to 3,360 l fresh water / 1.680 l sea water (at 0.5 mg PO4/l).
	Dupla Crystal, 10 ml	Creates crystal-clear water. For freshwater and seawater aquaria and garden ponds. Eliminates turbidity and removes suspended algae. Binds phosphate and reduces the formation of algae.
	Dupla Cur, 200 ml	Protective tonic with humic substances HS 1500 for 400 l of aquarium water. Boosts the body’s defences, has an anti-infl ammatory effect, and promotes the healing of small injuries.
	Dupla Biokaskade, 5l	High-performance fi lter body for trickling fi lters and large outside filters.
	Dupla Baccies, 100 g	Bacteria for cellulose and protein decomposition in freshwater and sea water aquaria.

Item no.	Product	Description
	DuplaMarin Premium Salt, 2 kg	Rapidly soluble premium salt meeting the most stringent requirements of modern coral reef aquaria. For 60 l.
	DuplaMarin Premium Salt, 4 kg	Rapidly soluble premium salt meeting the most stringent requirements of modern coral reef aquaria. For 120 l.
	DuplaMarin Premium Salt, 10 kg	Rapidly soluble premium salt meeting the most stringent requirements of modern coral reef aquaria. For 300 l.
	DuplaMarin Premium Salt, 25 kg	Rapidly soluble premium salt meeting the most stringent requirements of modern coral reef aquaria. For 750 l.

Item no.	Product	Description
	DuplaMarin Bacter M, 10 pcs., s.s.	For the addition of water purifying bacteria in high concentrations. Helps reduce harmful and poisonous substances.
	DuplaMarin Bacter M, 20 pcs., s.s.	For the addition of water purifying bacteria in high concentrations. Helps reduce harmful and poisonous substances.
	DuplaMarin Bacter Booster, 10 pcs., s.s.	Provides bacteria with micronutrients that are frequently lacking or quickly consumed in aquaria.
	DuplaMarin Bacter Booster, 20 pcs., s.s.	Provides bacteria with micronutrients that are frequently lacking or quickly consumed in aquaria.
	DuplaMarin Reef Power, 10 pcs., s.s.	Provides the zooxanthellae of hard coral with important micronutrients, intensifying their colour.
	DuplaMarin Reef Power, 20 pcs., s.s.	Provides the zooxanthellae of hard coral with important micronutrients, intensifying their colour.
	DuplaMarin Iodine+, 10 pcs., s.s.	Supplies non-chordate species with the essential trace element of iodine. Prevents bleaching of corals.
	DuplaMarin Iodine+, 20 pcs., s.s.	Supplies non-chordate species with the essential trace element of iodine. Prevents bleaching of corals.
	DuplaMarin Strontium+, 10 pcs., s.s.	Provides rock corals with strontium for the building of their skeletons. Strontium is consumed quickly in aquaria and must be added regularly.
	DuplaMarin Strontium+, 20 pcs., s.s.	Provides rock corals with strontium for the building of their skeletons. Strontium is consumed quickly in aquaria and must be added regularly.

Item no.	Product	Description
	DuplaMarin Liquid Trace Element Mixture, 250 ml	Provides non-chordate animals with essential trace elements such as I, Fe, Mn, Mo, K, Br, Sr, Cu, Zn and Ni.
	DuplaMarin Liquid Trace Element Mixture, 500 ml	Refill pack for the reactor of the Dupla Algo Contol Delta.
	DuplaMarin Liquid Trace Element Mixture, 1,000 ml	Provides non-chordate animals with essential trace elements such as I, Fe, Mn, Mo, K, Br, Sr, Cu, Zn and Ni.
	DuplaMarin Liquid Magnesium, 250 ml	Supplemented with trace elements, this product provides calciferous organisms with the essential mineral of magnesium.
	DuplaMarin Liquid Magnesium, 500 ml	Supplemented with trace elements, this product provides calciferous organisms with the essential mineral of magnesium.
	DuplaMarin Liquid Magnesium, 1,000 ml	Supplemented with trace elements, this product provides calciferous organisms with the essential mineral of magnesium.

Item no.	Product	Description
	DuplaMarin Iodine 24, 50 ml	Daily nutrient for invertebrates. Prevents bleaching of corals. Contains traces of brome, cilium and fluorine. For 50,000 l.
	DuplaMarin Iron 24, 50 ml	Daily nutrient for invertebrates. Promotes the development and colouring of corals. Contains traces of manganese. For 50,000 l.
	DuplaMarin Strontium 24, 50 ml	Daily nutrient for invertebrates. Essential for healthy skeleton formation and coral growth. Contains traces of molybdenum. For 50,000 l.
	DuplaMarin Siliphos, 180 ml	Removes phosphate and silicate compounds from the water and thus prevents slime algae growth. Suitable for all filter models. 180 ml for up to 720 l sea water (at 0.5 mg PO4/l).
	DuplaMarin Siliphos, 360 ml	Removes phosphate and silicate compounds from the water and thus prevents slime algae growth. Suitable for all filter models. 360 ml for up to 1,440 l sea water (at 0.5 mg PO4/l).
	DuplaMarin Siliphos, 840 ml	Removes phosphate and silicate compounds from the water and thus prevents slime algae growth. Suitable for all filter models. 840 ml for up to 3,360 l sea water (at 0.5 mg PO4/l).

Item no.	Product	Description
	DuplaMarin Power Magnesium powder, 200 g	Provides calciferous organisms with the essential mineral of magnesium. Promotes the growth of rock corals.
	DuplaMarin Power Magnesium powder, 400 g	Provides calciferous organisms with the essential mineral of magnesium. Promotes the growth of rock corals.
	DuplaMarin Power Magnesium powder, 800 g	Provides calciferous organisms with the essential mineral of magnesium. Promotes the growth of rock corals.
	DuplaMarin Power Calcium powder, 200 g	Provides calciferous organisms with the essential mineral of calcium. Promotes the growth of rock corals.
	DuplaMarin Power Calcium powder, 400 g	Provides calciferous organisms with the essential mineral of calcium. Promotes the growth of rock corals.
	DuplaMarin Power Calcium powder, 800 g	Provides calciferous organisms with the essential mineral of calcium. Promotes the growth of rock corals.
	DuplaMarin Power KH+ powder, 250 g	Provides the necessary hydrogen carbonate to the corals, promotes the growth of rock corals and stabilises the pH of the water.
	DuplaMarin Power KH+ powder, 500 g	Provides the necessary hydrogen carbonate to the corals, promotes the growth of rock corals and stabilises the pH of the water.

Item no.	Product	Description
	Dupla Coral fine, per kg	Coral sand for sea water aquaria. Has a slight hardening effect on the water. Also suitable for African cichlids.
	Dupla Coral medium, per kg	Coral sand for sea water aquaria. Has a slight hardening effect on the water. Also suitable for African cichlids.
	Dupla Coral coarse, per kg	Coral sand for sea water aquaria. Has a slight hardening effect on the water. Also suitable for African cichlids.
	Dupla Coral fine, 3 l.	Coral sand for sea water aquaria. Has a slight hardening effect on the water. Also suitable for African cichlids
	Dupla Coral medium, 3 l	Coral sand for sea water aquaria. Has a slight hardening effect on the water. Also suitable for African cichlids.
	Dupla Coral coarse, 3 l	Coral sand for sea water aquaria. Has a slight hardening effect on the water. Also suitable for African cichlids.
	DuplaMarin Lime Wood Air Stone 45x19x19 mm, 2 pcs., s.s.	Air stone producing very fi ne air bubbles. Quality product, suitable for operation with protein skimmer.
	DuplaMarin Lime Wood Air Stone 75x19x19 mm, 2 pcs., s.s.	Air stone producing very fi ne air bubbles. Quality product, suitable for operation with protein skimmer.
	DuplaMarin Lime Wood Air Stone 90x30x30 mm, s.s.	Air stone producing very fi ne air bubbles. Quality product, suitable for operation with protein skimmer.
	DuplaMarin DekoFix marin coral adhesive, 115 g, s.s.	Universal epoxy two-component adhesive. Applicable under water. Of beige-brown natural colour when hardened.
	DuplaMarin DekoFix liquid coral adhesive, 20 ml, s.s.	Viscous adhesive for coral division and reef design, hardening within seconds. Of white semitransparent colour when hardened.