Fluval Sea Hydrometer Food each pouch has an 18

each pouch has an 18 month shelf life at room temperature

Sometimes this can form if your magnesium is on the high side

If the water temperature is: cal

Deep Sea Glo

The attractive grain size makes it suitable for foreground plants

Fluval Sea Hydrometer Food each pouch has an 18Fluval Sea Hydrometer provides an accurate and convenient method of measuring specific gravity and salt level in marine aquariums. Regular testing is strongly recommended as stable salinity levels are essential for the health of marine fish and invertebrates. 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 tank and will not diminish