Sponsored product feature: CM Aqua Technologies – A Water Treatment Company You Need
With more than 30 years of experience in fish farming and water treatment our team, including engineers and biologists, works to ensure the optimal solution for your water treatment. Our services include particle filtration, sludge treatment, disinfection and oxygenation – we are certain that we can deliver the best filtration system tailor made for your needs.

Galaxy Skimmer
The well-known Ratz Protein Skimmer!
Ratz protein skimmers are efficient, ready to use protein skimmers with application use in aquaculture, aquaria and wastewater facilities.
Micro bubbles injected by the Ratz venturi drives ensure caption and removal of excess proteins in the treated water column to provide high water quality.
Suited for ozone
All Ratz protein skimmer models are suited with ozone injection points, off gas ventilation for treatment of excess ozone gas and loop re-injecting degassed ozone from the foam chamber. Ozone improves coagulation and foam formation in the protein skimmer.
Ratz protein skimmers are installed on a wide range of aquaculture facility and currently operating to treat water in salt- and freshwater RAS and model trout farm systems, inlet water for flow through systems and as end of pipe treatment in fish processing plants.
- Simple design allows for easy setup.
- Non corrosive plastic materials.
- Individual venturi drives designed for both fresh- and saltwater applications.
- Ready for ozone injection.
- Large foam chamber ensures foam to collapse resulting in low water use for backwash.
- Time or sensor controlled backwash system.
- 7 sizes readily available.
- Custom made skimmers on request, designed for desired flow and contact time.
- Produced in Germany.
- All non-corrosive plastic material.
- High removal rate of protein and particles below 30 micron.
- Can be used in brackish and saltwater, more than 1 % salinity.
- No moving parts, so very reliable, Ratz skimmers in operation for +20 years.
- Crystal clear water in aquariums and fish farms.
With a highly efficient venturis that works both in freshwater and saltwater. This is considered the most cost effective protein skimmer in the market.
Hex Drumfilter
Marine aquaculture is expanding as new and valuable species can now be domesticated. Farming marine species is not an easy task and setting up a RAS facility in corrosive environments is also proving to be a challenge. HEX filters are build with a view of high corrosion resistance, using PE, PVC, POM with high density as main components, the new platform for construction of drumfilters are based on the HEX-X-line, where even large drums are constructed of a durable polymer shaped as an X giving extra strength to the drum. Sludge from saltwater filters is more difficult to treat than the corresponding freshwater filters, one safe and effective way of dealing with this, is a separation belt filter with a three chamber system.
Why select the HEX Drum Filter?
- Game changing design based on 25 years of experience.
- Better filtration using the patented HEX filter panel.
- Smooth operation with very low maintenance.
- Water and energy savings with HEX E-Control.
- No corrosion, Optimal Life Cycle Cost (LCC) using corrosion resistant materials.
- Daily operator friendly.
- Correct selection and installation with support of our biologist and engineering.
This is used for warm saltwater applications and end pipe solutions and is completely rust resistant which is very reliable and need little maintenance.
Post written by:
CM Aqua Technologies
For more information, visit: https://cmaqua.dk/
