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Re: alkalinity for SPS dominance
Posted: Thu May 08, 2025 6:55 am
by furrow
lighton7 wrote: ↑Thu May 08, 2025 5:47 am
Consistency beats chasing numbers. I keep alk at 8.8, cal 440, mag 1350. Dosing pumps on timers to avoid swings. SPS hate surprises more than imperfect params.
This. I crashed a tank once by overcorrecting alk. Slow adjustments, like 0.5 dKH per day max.
Re: alkalinity for SPS dominance
Posted: Thu May 08, 2025 8:54 am
by dutzu
My SPS do better at lower alk, weirdly. Run mine at 7.8, but I've got softies mixed in. Maybe it's the competition?
Re: alkalinity for SPS dominance
Posted: Thu May 08, 2025 9:43 am
by landfall
dutzu wrote: ↑Thu May 08, 2025 8:54 am
My SPS do better at lower alk, weirdly. Run mine at 7.8, but I've got softies mixed in. Maybe it's the competition?
Could be allelopathy—softies release chemicals that bug SPS. Try carbon or extra skimming if you're mixed. Pure SPS tanks often run hotter alk.