A Reefers Refuge!! We are a premium provider of incredibly healthy pest free coral in Northeast Philadelphia. We only sell coral that have been extensively quarantined and are vetted for captive aquaculture.
The re-designed deep six hydrometer with improved calibration and bubble diffuser ensures more accurate readings of your aquarium salt levels. Also includes a built in base so you can rest the hydrometer on a counter top or other flat surface when taking salt readings.
Specific Gravity and Salinity PPT Scales
Optimal Specific Gravity / Salinity range indicator on scale
Bubble diffuser on water intake prevents micro-bubbles from forming on needle