Due to the Holiday Season, we will be unable to fulfil livestock deliveries until further notice, as our delivery service are unable to guarantee next day delivery. We apologize for any inconvenience caused.
A refractometer is a simple and robust way of accurately measuring the salinity within your aquarium and should be used by every serious marine aquarist.
Most people when entering the marine aquarium hobby tend to purchase a plastic swing arm hydrometer due to the low price of these items.
Fluval Sea Hydrometer provides an accurate and convenient method of measuring specific gravity and salt level in marine aquariums. Compact and easy to use, the hydrometer can be permanently installed inside the tank for continuous readings.
Its slim, low-profile design camouflages well inside the t..