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View Poll Results: Best Calcium/Mg/Alk/Nitrate test kits? | |||
Instant Ocean | 0 | 0% | |
Salifert | 10 | 62.50% | |
ELOS | 1 | 6.25% | |
API | 3 | 18.75% | |
Tetra | 0 | 0% | |
Seachem | 2 | 12.50% | |
Hagen | 0 | 0% | |
Voters: 16. You may not vote on this poll |
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#1
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When was the last time you calibrated your pH probe? After 3 months I find mine can easily be out by .2 When they're out by even more than that I replace them which is probably between 1-2 years. I buy standard probes and not Lab grade and that also shortens their usable lifespan.
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#2
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