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Compatibility built-in
ammonia and nitrite can increase to levels toxic to fish – a process called New Tank Syndrome
And even extreme fluctuations of temperature that can occur during a water change do not harm this glass
Based on years of experience in marine biology
The 4” filter sock is 100 micron rating
NEPTUNE SYSTEMS LAB GRADE DOUBLE JUNCTION PH PROBE Instant Ocean Compatibility built-inNeptune Double Junction probes will out last most other traditional lab grade probes letting you go longer between calibrations, and having to purchase and replace probes less frequently. The Double Junction isolates the reference gel and probe from proteins and other organics that may otherwise precipitate and clog, shortening the lifespan of the probe. Longer lasting Reliable readings Quality connections BNC style connector Neptune's Double Junction