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then use the cubes instead
sera marin bio reefclear (marine water) or sera pond bio nitrivec (pond) in case of slightly elevated nitrite levels
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they support the healing process after injuries
Sera Fishtamin is also suitable for strengthening pond fish before and after hibernation
Sera Marine Hydrometer Precision Glass Saltwater Hydrometer Kessil AP700 Hanging Kit then use the cubes insteadSera Marin Hydrometer. For the easy monitoring of marine water density. The salinity (salt contents) can be determined by measuring the density with the precision German engineered glass hydrometer from Sera. The salinity in a marine aquarium must be kept constant and should be checked regularly. The water to be tested is filled into a tall water glass, and the scale of the immersed hydrometer shows the salinity level based in the immersion depth.
US$ 3885.50
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US$ 787.50
US$ 787.50
US$ 48.90
US$ 48.90