Ultra-Pure Water Filtration for Advanced Aquarium Applications
The ARKA® myAqua Resin Filter 1.900 is a specialised high-performance post-filter designed for use with the ARKA® myAqua Reverse Osmosis System 1.900. It provides an additional purification stage after reverse osmosis, helping remove remaining dissolved impurities and producing ultra-pure water for sensitive aquarium environments.
Using advanced ion exchange resin technology, the filter effectively reduces residual substances such as silicates, nitrates, and other dissolved ions that may remain after standard reverse osmosis filtration. This makes it an essential accessory for aquarists who require precise control over water quality, especially in reef aquariums, planted tanks, and systems housing sensitive aquatic species.
Advanced Ion Exchange Filtration
Reverse osmosis systems remove the majority of dissolved contaminants from tap water, but small traces of dissolved substances may still remain. The ARKA® myAqua1900 Resin Filter acts as a final polishing stage by passing purified water through specialised resin media.
The ion exchange process captures unwanted dissolved compounds, helping achieve exceptionally clean water with minimal remaining impurities.
The filter effectively targets:
- Silicates
- Nitrates
- Residual dissolved solids
- Other unwanted ions
By reducing these substances, the filter helps create a more controlled and stable foundation for aquarium water preparation.
Designed for ARKA® myAqua Reverse Osmosis System 1.900
The myAqua Resin Filter 1.900 has been specifically developed as a compatible post-filter for the ARKA® myAqua Reverse Osmosis System 1.900. Installed after the RO unit, it provides an additional purification step to further improve water quality before it is introduced into the aquarium.
It is ideal for:
- Marine aquariums
- Reef tanks
- Planted aquariums
- Shrimp aquariums
- Discus and sensitive fish setups
- Advanced aquarium systems
The additional filtration stage gives aquarists greater control over water parameters and helps create optimal conditions for demanding aquatic life.
Supports Sensitive Aquarium Environments
High-quality water is essential for maintaining healthy and stable aquarium ecosystems. Certain aquatic species, corals, and plants are particularly sensitive to dissolved contaminants that may influence growth, colouration, or overall health.
The ARKA® myAqua1900 Resin Filter helps aquarists achieve cleaner water by reducing unwanted dissolved substances, supporting:
- Stable aquarium conditions
- Improved water purity
- Better control over water chemistry
- Healthier aquatic environments
Efficient and Reliable Operation
Designed for practical aquarium use, the myAqua1900 Resin Filter provides reliable performance while maintaining efficient water flow. Its compact design allows easy installation within reverse osmosis systems without taking up unnecessary space.
The filter supports a maximum flow rate of 2 litres per minute, making it suitable for regular aquarium water preparation and maintenance.
Maintenance and Replacement
The resin cartridge gradually becomes exhausted as it removes dissolved substances from the water. For continued performance, regular replacement is recommended.
Recommended replacement period:
- Every 6–12 months, depending on water quality and usage
Replacement frequency may vary depending on:
- Incoming water quality
- Total dissolved solids (TDS)
- Frequency of operation
- Aquarium requirements
Replacing the resin at the correct interval ensures consistent production of ultra-pure water.
Features
- Designed for ARKA® myAqua Reverse Osmosis System 1.900
- Advanced ion exchange resin filtration
- Removes silicates, nitrates, and residual ions
- Produces ultra-pure water
- Ideal for marine, reef, and sensitive freshwater systems
- Improves water quality after reverse osmosis
- Compact and easy-to-install design
- Suitable for professional and advanced aquarium applications
- Reliable long-term filtration performance
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | ARKA® myAqua Resin Filter 1.900 |
| Filter Type | Resin-based post-filter |
| Application | Post-filtration for myAqua Reverse Osmosis System 1.900 |
| Filtration Method | Ion exchange |
| Removes | Silicates, nitrates, residual dissolved ions |
| Recommended Use | Aquariums, reef tanks, sensitive water systems |
| Replacement Interval | Every 6–12 months (depending on usage and water quality) |
| Length | 275 mm |
| Width | 80 mm |
| Maximum Flow Rate | 2 litres/min |
| Operating Temperature | 5°C – 38°C |
| Operating Pressure | 1 – 4 bar |
Professional Water Purification Solution
The ARKA® myAqua1900 Resin Filter is the ideal choice for aquarists who require the highest level of water purity. By providing an advanced final filtration stage after reverse osmosis, it helps remove remaining dissolved impurities and delivers exceptionally clean water for demanding aquarium applications.
Whether maintaining a reef aquarium, planted aquascape, or sensitive freshwater system, the myAqua1900 Resin Filter provides dependable performance and precise water purification for superior aquarium care.


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