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To monitor the density of seawater simply Salinity (salt content) can be inferred from the measured density. Since the salinity of seawater in the aquarium must remain constant, the aquarium...

Liquid Plankton Food for Filter-Feeding Invertebrates Sera Marin Coralquid is a basic liquid food consisting of a carefully made stable suspension of very fine food particles for corals and filter-feeding...

The Sera Marin COMPONENT 1 – 7 product range is designed for marine aquarium enthusiasts, providing corals and other lower animals with seven valuable ingredients adapted to each other. Contains...

Contains essential calcium for building the structure of coral reefs and other soft animals, used with Sera marin COMPONENT 2 Sera marin COMPONENT 1 Ca - Calcium - for saltwater....

Used to determine the concentration of magnesium (magnesium) in a marine fish tank, replacement pack 3 Warning! Reagent 1 contains sodium hydroxide. Causes severe burns. Keep the reagent closed and...

Daylight with natural colors (6000 - 8000 Kelvin) Allows for simulating sunrise and sunset when combined with the digital dimmer from Sera Suitable for freshwater aquariums The Sera X-Change daylight...

Acrylic Glass Holder for elegantly mounting Sera LED X-Change tubes on open aquariums Thanks to the transparent screws, the unobtrusive holder made of beautifully curved acrylic glass can be Edit...

Sera LED Extension Cable 1 piece. 1.2 m (3.9 ft) 31290

Staple food for optimal development up to 12 cm Complete food for all koi fish Floating pellets, especially with a stable shape Ideal for small koi fish Supports balanced growth,...

Staple food for optimal development of koi up to 12 cm (5 inches) Floating grains, particularly stable grains Ideal for small koi Promotes balanced growth, strengthens the immune system, and...

Friend Koi Water Treatment Rich in Minerals Instantly removes chlorine and chloramine Binds to heavy metals With mineral substancesSera Koi Protect treats all water according to the requirements of koi...

Functional food for optimal colors and healthy growth Floating pellets composed of a ring and core High in spirulina rich in pigment and Haematococcus algae rich in astaxanthin For a...

Powerful pond filter for ponds up to 40,000 liters (10,568 US gallons) or koi ponds up to 24,000 liters (6,340 US gallons) The Sera Pond Koi Professional 24000 filter offers...

Additional vitamins for more vitality Supplementary food made from emulsified multivitamin concentrate Enhances the koi food system with all valuable vitamins Fills potential supply gaps and prevents deficiencies Enhances the...

Stability and certainty Acts to create a buffer and ensures pH value Works against biofouling Creates conditions for certain species (such as African cichlid species) Carbonate hardness (KH) is one...

Stability and certainty Creates a buffer and ensures pH value Works against biological calcification Creates conditions for certain species (such as African cichlids) Carbonate hardness (KH) is one of the...

Sera Immun Pro Nature Sera Immun Pro Nature is a growth Food for all ornamental fish longer than 4 cm (1.6 inches). The probiotics are applied to the Food in...

Sera ImmunPro Nature is a growth food for all ornamental fish longer than 4 cm (1.6 inches). The probiotics are applied to the food in a particularly gentle manner, contributing...

The treat consists of flakes and complete dry foods for diverse diets Sera GVG-Mix Nature treats are the reward for surface-feeding fish that require no artificial colors or preservatives. The...