Help! Alk swung 1.5 dKH overnight
Tested last night at 8.2, this morning 6.7. Tank is a 20gal AIO, week 8. Did a 2gal water change yesterday with Tropic Marin Pro Reef. Anything I should worry about? Coral still looks fine.
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Replies
- Check your test kit first — Hanna checker vs Salifert can show a full dKH apart. Re-test with a fresh reagent.
- Also worth checking salinity. A small AIO can swing fast with evap.
- Re-tested with a Hanna, came back 7.9. False alarm! Thanks reefers.
- test test test comment
- test bump
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