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Oxygen is essential for fish. Plants and filter bacteria. The concentration of dissolved oxygen can drop to dangerous levels causing hypoxia stress.
The only test available to measure 0.5ppm exygen, very accurate.
Browse the complete NT Labs Fish Food & Treatment range
| Product | Pricing | Order form |
|---|---|---|
| NT Labs Pondlab Oxygen test kit NTLABS287 |
was: our price £15.49 delivery: small order note |