Aquarium Elements TDS Water Tester Substrate of both plant and animal

of both plant and animal sources

Eliminates Foul Odors

May cause noticeable temporary foaming

Fish Protein Concentrate

It might be possible that the color is in between two different ones

Aquarium Elements TDS Water Tester Substrate of both plant and animalFAST AND ACCURATE READINGS Just turn it on, dip in about 1 inch deep of water and read display, Large digital display makes it easy to read. AUTOMATIC CALIBRATION No need for any adjustment screwdrivers, just finish the calibration with Auto calibration with 3 5 seconds, Measure total dissolved solids in water(tds),Know exactly when to change water filters. PORTABLE DESIGN Handheld pen style and compact carrying case makes it conveniently fits in your