Coralife Deep Six Hydrometer Under Gravel Filter Measurements approx

Measurements approx

Antibiotic and hormone free

Blue-Tongued Skinks

Don't be fooled - these pumps are powerful and versatile

this product is not crushed at all

Coralife Deep Six Hydrometer Under Gravel Filter Measurements approxDeep Six Hydrometer The hobbyist can take a water sample at six inches in depth without submerging their hands in the water, thus avoiding the possibility of contamination. Samples taken at six inches in depth have been proven to give a more accurate salinity reading than surface samples. Every unit is calibrated and tested for accuracy using advanced testing procedures. With its durable construction and easy to read scales, the deep six is guaranteed