ASF Hydrometer Reef Zlements all you need to do

all you need to do is push out the included rubber lock

Filter fleece: 10cm (4”) width – length 40m (131ft)

For in tank treatment: Use one level scoop of Medic for every 190L (50 Gallons) of your system volume twice per day For serious problems use (3)  level scoop for every 190L (50 Gallons) of your system volume

Running power: 2

The test can be performed in about 90 seconds

ASF Hydrometer Reef Zlements all you need to doThe SeaTest Hydrometer is an easy to use scientific instrument that is used both to measure the specific weight and the density of the water in tropical marine aquariums. It is specially designed to provide accurate measurements of specific weight from 1. 014 to 1. 030 and salinity from 20 to 40 parts per thousand. Unbreakable and easy to clean.