Additional flow filter for aquariums up to 600 ls with revolutionary HYDRO-PURE filtration.

Test strips for 6 important water values ​​in 1 minute: Orientation quick test for aquarium, pond, well, spring and tap water Easy to use: move the test strip for 2-3 seconds in the water. Remove the test strip. Horizontal dripping of water. Comparison after one minute: test strip with color scale on packaging Determination of the following values: chlorine, acidity (pH), total hardness (GH), toxic nitrogen compound (NO2), algae cause (NO3) and pH stability (KH) of the water

JBL Pro Sound with 2-way speaker system: the speaker box with racetrack-shaped woofer, separate tweeter and 2 optimised passive radiators delivers extremely clear sound with deep bass.
Wireless Bluetooth streaming: connect the music box with up to 2 smartphones or tablets. With the JBL Portable app, the sound can be amplified or the bass can be optimised.
Ready for the party: with the waterproof and dust-proof housing according to IP67, the JBL box can be taken anywhere and offers up to 12 hours of pure music enjoyment thanks to the powerful battery.
Small party and large dance floor: connect two boxes for stereo sound or any number of JBL PartyBoost compatible speakers to cr

For perfect aquarium plant growth: determining the optimal magnesium value for fertilisation control for freshwater aquariums.
Laboratory compressor system to compensate for water colour colouring: fill glass cuvettes with sample water, add reagents in a cuvette, place cuvettes in holders, read values on colour chart.
Magnesium deficiency leads to stagnant growth and bright leaf colour. Remediation with magnesium-containing fertiliser: JBL Ferropol, JBL ProScape Mg Macroelements.

- INNOVATIVE SURFACE REMOVAL: Our skimmer frees the aquarium surface quickly and effectively from "floating debris" such as plant remains and of course from the annoying scum.
IMPROVED GAS EXCHANGE: A thick scum skin makes gas exchange more difficult - with the CrystalSkim it can be significantly improved again for the benefit of all aquarium inhabitants.
AFTER THE PRUNING: After the plants have been pruned, the skimmer easily catches even the finest bits of plant that can hardly be fished out with the net.
INDIVIDUALLY ADJUSTABLE: The powerful motor can be individually adjusted and thus flexibly ensures a crystal-clear water surface.
COMPACT AND DISCREET: The skimmer's reserved, compact and modern design allows it to fade into the background.

The OASE SwimSkim 25 (332 mm long, 297 mm wide, 250 mm high) is a floating surface skimmer that is ideally suited for ponds up to a maximum of 25 m² water surface.
The floating unit adapts easily to any water level.
The integrated pump with a 10 m long cable has a capacity of max. 2500 l/h with a power consumption of only 40 watts and thus ensures that the pond surface is kept clean from leaves, pollen, etc.
The cleaned surface water is passed back into the pond via an injector, this also ensures oxygen enrichment in the pond.
The collection basket can be easily removed for convenient maintenance.