Oase AquaSkim 20 Pond Surface Skimmer

Product Information

COMPACT AND DISCREET: CrystalSkim is compact in size and has a powerful and quiet motor. In addition to skimming, the unit is designed with a bottom discharge that creates flow in what would be dead spots normally.

The successful SwimSkim concept has been consistently further developed: The big brother of the multi-talented SwimSkim 25 now keeps pond surfaces up to 50 m2 free of leaves, pollen, or similar particles. The AquaSkim Gravity is designed to be easily integrated with existing gravity fed filter systems and can be easily attached to 110mm pipework via the included DN160/110 adaptor. Like the AquaSkim 40 It will remove debris from pond surfaces up to 40m² and accommodate water level variations up to 120mm. This skimmer does tend to float around a bit so anchoring it to one place (like I would do with the smaller 25 version, away from your water plants) is what I would do. Filtration is carried out through a (replaceable) bio-mechanical foam with a fine mesh. The real issue with this model is the small size of the collection basket at 0.9 litres. This means you might frequently need to clean all the collected debris basket off every couple of days, especially large leaves in the autumn. This is where I would recommend the larger Oase 50 SwimSkim because it has the larger 4.5 litre basket.

This Oase 50 pond skimmer model also injects oxygen into the water. This helps to create a healthy environment for your plants. And you don’t need to worry if the water level changes in your pond, especially in the summer. This skimmer automatically adjusts to that and carries on working to keep your pond clean. Pros The Oase AquaSkim Gravity floating skimmer slides directly over a 160 -110 mm reducer and can than be connected to the pump or filter via a 110 mm pipe. Leaves, pollen and other algae nutrients get into the pond water via the surface. Oase skimmers powerfully and effectively extract these dirt particles from the surface, collecting them in the basket. That way, dirt can be removed from the pond ecosystem before it starts to pollute it.

The Tetra Pond In-Pond Skimmer is a model that doesn’t come with an integral pump – you need to supply your own pond water pump. However, if your pond equipment is already part of the Tetra range of supplies, this skimmer is compatible with the TetraPond Water Garden Pumps and TetraPond Waterfall Filter. That being said, it will work with other brands of pump, you might just need to get some adaptors to make sure it will connect to your pump. Floating pond skimmers need to float with about 3cm of water above the weir door. The weir door is where the water enters the skimmer. This door rises to the level of the water. The flow rate of water through the skimmer is determined by the flow rate (L/hr) of the pump that’s being used (or perhaps is included in the unit). Do regular pond skimmers remove protein from a pond? ADJUSTS TO WATER LEVEL: The floating ring is designed to allow the CrystalSkim to still skim the water's surface even if the skimmer isn't level. The Oase Built-in Surface Skimmer Biosys Skimmer + is designed for those who have larger ponds with up to 50m 2 of surface area but, more importantly, need a built-in skimmer. This means less maintenance because it is bigger and can hold more debris before needing to be emptied. This is not a floating skimmer like most of the other models in this review. This Oase Biosys skimmer sits in the soil, directly on the side of the pond. It’s known as a surface skimmer but will take more work to install and it ideally needs to be installed whilst you are building the pond. The size of the collection basket determines how large a piece of debris the skimmer collects. Smaller baskets may not handle large fallen autumn leaves very well. Plus the capacity of the basket (along with how much debris falls on your pond) is tied to how often you need to empty out the collected debris. If your pond is quite full of organic material and the collection basket is small, this may be a daily task.The Oase Swim Skim Skimmer 25 is, for me, one of the best pond skimmers for small to medium-sized ponds. It’s a complete unit because it comes with a built-in pump so it’s easy to set up with nothing else needed.

Oase skimmers powerfully and effectively remove leaves, pollen and other algae nutrients from the surface, collecting them in the basket. That way, dirt can be removed from the pond ecosystem before it starts to pollute it. The result is clearly improved water quality and viewing depth through direct removal of pollutants on the surface. This rectangular pond skimmer is suitable for ponds with volumes between 1900L and 3800L. The filtration system is mechanical through a (replaceable) filter pad. The collection basket is large enough to collect a decent amount of debris, including leaves. The OASE AquaSkim 40 keeps the water surface of up to 40 m² clean and is an ideal addition to the AquaMax Eco Premium models 8000-16000 and Twin 20/30000. The skimmer basket has a diameter of 170 mm. It can be easily adapted to the pond depth thanks to the two-part telescopic tube, which is infinitely height-adjustable from 300 to 800 mm. The skimmer compensates for water level differences of up to 120 mm. The filter basket volume is 1.4 l. The skimmer lets through dirt particles up to 10 mm in size. Thanks to the 350 mm base, the AquaSkim 40 can be fixed to the pond floor with stones that are particularly stable. The small pipe diameter of 80 mm also ensures less air content and thus prevents the skimmer, which has a connection with a universal stepped hose nozzle from ¾ “to 1½”. The Oase Swimskim skimmers powerfully and effectively extract dirt particles from the surface, collecting them in the basket.This model does come with a long 10m power cable so it has plenty of reach to be able to connect it up to a power source. The skimmer does move around in the water at the end of the cable, as already mentioned, so I would consider tying it against the wall in a permanent position. Pros The weir door is a door that floats up and down within a given range according to the water level. It lets the water into the skimmer system. It’s essential to have an opening and closing door if you have fish. You don’t want any fish (or other wildlife) to be drawn into the skimmer and be injured. Oxygen injector

CrystalSkim 350 is suitable for fresh and marine aquariums up to 92 gallons (350 l).CrystalSkim 600 is suitable for fresh and marine aquariums up to 160 gallons (600 l). CATCHES THE FINEST DEBRIS: Designed to catch even the finest plant debris that is almost impossible to remove with a net. Trapping the organic materials before they decay is one way to reduce the production of ammonia in the water. This is what pond skimmers do. Features of the best pond skimmers Floating or stationary? With the SwimSkim 25 the integrated whirlpool function, if desired, whirls up deposits on the floor of the pond and feeds them to the pump. Both models additionally enrich the water with vital oxygen and thus improve the water quality. These skimmer units will greatly reduce pond maintenance requirements and also result in improved water quality and clarity. They can be used in conjunction with existing pumps and are the perfect compliment to the Aquamax Eco Premium range of filter pumps.

Palletised delivery

These organic materials decay over time as they sink to the bottom of the pond. Decaying matter produces ammonia which harms the health of your pond’s ecosystem. This is a simple (and one of the more affordable) model that uses a plastic mesh screen to remove debris from the water. Simply remove the basket, empty it and then rinse it to keep the skimmer running well. The hose attachment for this unit comes with three adapters of different sizes – 25/32/38mm. You’re not limited to having a particular size of hose in your system. Pros Free floating skimmer head that self adjusts up to 100mm (AquaSkim 20) or 120mm (AquaSkim 40) to accommodate changing water levels A pond skimmer is a filter that removes debris mechanically from the surface of the water. (The Oase SwimSkim 50 is the only model in this review to stir up the water and bring the sunken debris up to the surface.) The pond water is filtered through a mesh/screen or some kind of foam to remove the bits and pieces that are collected in the basket. How do floating pond skimmers work?