A milky, brown, or murky colour of the water can indicate problems in the aquarium water. In this case there will also be fish near the water surface gasping for air.
To prevent such problems, OASE recommends installation of a water filter, a regular water change and care of the aquarium (cleaning out fish food remnants, remnants of dead plants, debris particles and dead fish). Regular water tests can also help.
Changing the water at regular intervals is recommend because contamination through fish eliminations and dead plant parts occurs continuously. For a regular water change, replacing 20 to 30% of the water suffices.
With the flexible Aqua In-Out Set – water changing system a water change in your aquarium can be quickly executed without complications. Thanks to its reliable and efficient pump the old water is quickly conveyed out of the aquarium, and fresh water is quickly conveyed into the aquarium. The complete set includes a pump, a hose and a hose fastening element.
In any case, for water treatment in the aquarium, OASE recommends installation of a filter that ensures clear and clean water. Without such a water filter the water will presumably quickly have a murky or contaminated appearance. In addition to filtration of small particles and bacteria, aquarium filters also ensure adequate oxygen enrichment, as well as uniform surface movement and flow.
The BioCompact filters offer effective water filtration for small aquariums and paludariums from 25 to 50 litres in a compact size. The water flow rate can be adjusted individually. The integrated active charcoal foam ensures effective water filtration. All BioCompact filters are have an extremely quiet and energy-efficient pump. Filter media can be simply pulled out of the BioCompact and rinsed in lukewarm water or replaced as needed.
The BioPlus filters are practical internal filters for aquariums from 50 to 200 litres in size. The filters have a quiet energy-saving pump – there are no disturbing noises. Thanks to the EasyClean mechanism the compact filter taken out for cleaning without complications. To do this, the filter unit must be carefully pulled off of the pump unit (magnetic holder). Then the filter modules are simply separated from each other and the filter foams and filter fleece elements contained in the modules are rinsed under warm water or they are replaced. The integrated diffuser nozzles ensure uniform surface movement and oxygen enrichment. In addition they prevent formation of biofilm. The filter is available with or without the HeatUp adjustable heater.
FiltoSmart or FiltoSmart Thermo are entry-level filters for small and medium-sized aquariums from 60 to 300 litres with medium fish stock. It has a high filter volume and a lot of space in the tank, thanks to the full power of an external filter Starting with the 100-litre variant, the filter is available with or without the HeatUp adjustable heater. Filter media can be simply removed from the FiltoSmart and rinsed in warm water or replaced as needed. A practical tip when introducing the ceramic substrate: Cover the heater tube when introducing the ceramic substrate; this prevents substrate from getting into the heater tube.
The BioMaster or BioMaster Thermo is an external filter for aquariums between 250 and 600 litres in size with high fish stock. It offers convenience for the most rigorous requirements. The BioMaster can not only be conveniently concealed in the aquarium base cabinet, in is easy to clean, and in can be cleaned with particular convenience. The prefilter can be completely removed, simply rinse out and re-insert it – neat and clean thanks to the EasyClean prefilter module. The aquarium filter is available with or without the HeatUp adjustable heater. The BioMaster ensures discrete highly efficient filter technology outside of your aquarium!
To clean the aquarium coarse debris particles, in addition OASE recommends procuring beforehand the necessary care utensils that no genuine aquarium enthusiast would be without.
The OASE plant scissors are outstanding as a plant tool for regular care of the aquarium plants. With the OASE plant scissors you can easily cut back plants and remove dead parts. Suitable for fresh water!
The OASE plant tweezers can be used effectively to insert plants and remove dead plant parts. Moreover, using the tweezers small decorations in the aquarium can be repositioned or removed entirely. Suitable for fresh water!
The aquarium glass cleaner from OASE removes algae effortlessly and without scratches due to its ergonomic characteristics. It is suitable for fresh water as well as saltwater. However, after use in saltwater it must be thoroughly cleaned with fresh water.
With the floating magnetic glass cleaner you can clean the glass of your aquarium without "getting your hands wet". And it's easy to remove algae in the process. Suitable for fresh water and salt water!
The OASE spiral brush is effectively suited for cleaning hoses with an inner diameter from 9 mm to maximum 25 mm. After use in salt water it should be thoroughly rinsed off with fresh water.
To transport fish, or for elimination of dead plant remains and other coarse debris particles or for catching fish, OASE recommends fish nets that are available in different sizes. The wide-mesh, durable aquarium nets are easy to use. To facilitate catching fish, the net has been manufactured of extra black material. The nets are uniformly suitable for freshwater and saltwater, however after use in salt water they should be thoroughly rinsed off with fresh water.
Algae – who hasn't experienced it? Thus virtually every aquarium enthusiast must struggle with algae and often perceives this as annoying and bothersome. In most cases algae are not harmful, nevertheless no one wants it in his own aquarium. Here we show you what you can do to avoid algae.
There are different types of algae, however only a few are relevant for an aquarium. The most frequent are presented below: Blue algae, red algae, green algae, brown algae.
There are many reasons for increased algae growth, however the most frequent cause is an over-abundance of nutrients.
To avoid increased algae growth, the nutrient cycle in an aquarium must function. If nutrients are added, e.g. through fish food, then nutrients must also be removed, e.g. through trimming of plants and/or a water change. In particular, frequent water changes withdraw the excess nutrients and thus help eliminate algae.
Additional information on the topic of algae is provided on ourGuide pages.
So-called green algae (Chlorophyta) is one of the most frequently-occurring algae types. This algae type is usually a single-cell algae that colours the water green as suspended algae; it is an indication of healthy aquarium water. A lot of light and a rich nutrient offering are the most important components for rapid proliferation of green algae. When there is a lack of light green algae die off and can also burden the aquarium water.